diff --git a/bin/build-cultures.php b/bin/build-cultures.php
index d55362b7..b262ecda 100644
--- a/bin/build-cultures.php
+++ b/bin/build-cultures.php
@@ -25,6 +25,7 @@
 use TxTextControl\ReportingCloud\Assert\Assert;
 use TxTextControl\ReportingCloud\Exception\RuntimeException;
 use TxTextControl\ReportingCloud\Stdlib\ArrayUtils;
+use TxTextControl\ReportingCloud\Stdlib\ConsoleUtils;
 
 // ---------------------------------------------------------------------------------------------------------------------
 
@@ -44,7 +45,7 @@
 }
 
 if (0 === count($values)) {
-    $format  = 'Cannot download the available cultures from %s';
+    $format  = 'Cannot download the available cultures from "%s".';
     $message = sprintf($format, $url);
     throw new RuntimeException($message);
 }
@@ -61,11 +62,9 @@
 ArrayUtils::varExportToFile($filename, $values, $generator);
 
 echo PHP_EOL;
-echo sprintf('The available cultures (%d) are %s.', count($values), implode(', ', $values));
-echo PHP_EOL;
-echo PHP_EOL;
-echo sprintf('Written data file to %s', $filename);
+ConsoleUtils::writeLn('The available cultures (%d) are %s.', count($values), implode(', ', $values));
 echo PHP_EOL;
+ConsoleUtils::writeLn('Written data file to "%s".', $filename);
 echo PHP_EOL;
 
 // ---------------------------------------------------------------------------------------------------------------------
diff --git a/bin/build-dictionaries.php b/bin/build-dictionaries.php
index e013dd60..e70be547 100644
--- a/bin/build-dictionaries.php
+++ b/bin/build-dictionaries.php
@@ -47,11 +47,9 @@
 ArrayUtils::varExportToFile($filename, $values, $generator);
 
 echo PHP_EOL;
-echo sprintf('The available dictionaries (%d) are %s.', count($values), implode(', ', $values));
-echo PHP_EOL;
-echo PHP_EOL;
-echo sprintf('Written data file to %s', $filename);
+ConsoleUtils::writeLn('The available dictionaries (%d) are %s.', count($values), implode(', ', $values));
 echo PHP_EOL;
+ConsoleUtils::writeLn('Written data file to "%s".', $filename);
 echo PHP_EOL;
 
 // ---------------------------------------------------------------------------------------------------------------------
diff --git a/demo/api-key-management.php b/demo/api-key-management.php
index 476bd624..64b9709f 100644
--- a/demo/api-key-management.php
+++ b/demo/api-key-management.php
@@ -10,22 +10,16 @@
 
 $reportingCloud = new ReportingCloud([
     'api_key' => ConsoleUtils::apiKey(),
+    'test'    => true,
 ]);
 
-$apiKeys = $reportingCloud->getApiKeys();
-
-if (!empty($apiKeys)) {
-    foreach ($apiKeys as $apiKey) {
-        if ($apiKey['key'] == ConsoleUtils::apiKey()) {
-            echo sprintf("Keeping API key %s...", $apiKey['key']);
-            echo PHP_EOL;
-            continue;
-        }
-        echo sprintf("Deleting API key %s...", $apiKey['key']);
-        echo PHP_EOL;
-        $reportingCloud->deleteApiKey($apiKey['key']);
-        unset($apiKey);
+foreach ($reportingCloud->getApiKeys() as $apiKey) {
+    if ($apiKey['key'] === ConsoleUtils::apiKey()) {
+        ConsoleUtils::writeLn('Keeping API key "%s".', $apiKey['key']);
+        continue;
     }
+    ConsoleUtils::writeLn('Deleting API key "%s".', $apiKey['key']);
+    $reportingCloud->deleteApiKey($apiKey['key']);
 }
 
 $newApiKey = $reportingCloud->createApiKey();
@@ -38,7 +32,8 @@
     'api_key' => $newApiKey,
 ]);
 
-dump($reportingCloud->getAccountSettings());
-dump($reportingCloud->getTemplateList());
+ConsoleUtils::dump($reportingCloud->getAccountSettings());
+
+ConsoleUtils::dump($reportingCloud->getTemplateList());
 
 // ---------------------------------------------------------------------------------------------------------------------
diff --git a/demo/append-document-advanced.php b/demo/append-document-advanced.php
index e546bb0f..d0cd0b1f 100644
--- a/demo/append-document-advanced.php
+++ b/demo/append-document-advanced.php
@@ -9,19 +9,20 @@
 
 $reportingCloud = new ReportingCloud([
     'api_key' => ConsoleUtils::apiKey(),
+    'test'    => true,
 ]);
 
 $documents = [
     [
-        'filename' => sprintf('%s/test_document.docx', Path::resource()),
+        'filename' => sprintf('%s/maelzel_machine.docx', Path::resource()),
         'divider'  => ReportingCloud::DOCUMENT_DIVIDER_NEW_SECTION,
     ],
     [
-        'filename' => sprintf('%s/test_document.docx', Path::resource()),
+        'filename' => sprintf('%s/maelzel_machine.docx', Path::resource()),
         'divider'  => ReportingCloud::DOCUMENT_DIVIDER_NEW_SECTION,
     ],
     [
-        'filename' => sprintf('%s/test_document.docx', Path::resource()),
+        'filename' => sprintf('%s/maelzel_machine.docx', Path::resource()),
         'divider'  => ReportingCloud::DOCUMENT_DIVIDER_NEW_SECTION,
     ],
 ];
@@ -29,11 +30,11 @@
 $destinationFilename = sprintf('%s/test_append_document_advanced.pdf', Path::output());
 
 $documentSettings = [
-    'author'                 => 'James Henry Trotter',
+    'author'                 => 'Wikipedia',
     'creation_date'          => time(),
-    'creator_application'    => 'An awesome creator',
-    'document_subject'       => 'The Old Green Grasshopper',
-    'document_title'         => 'James and the Giant Peach',
+    'creator_application'    => 'ReportingCloud PHP SDK',
+    'document_subject'       => 'The Mechanical Turk',
+    'document_title'         => 'Mälzel and the Machine',
     'last_modification_date' => time(),
     'user_password'          => '1',
 ];
@@ -46,5 +47,4 @@
 
 file_put_contents($destinationFilename, $binaryData);
 
-echo sprintf('Written to "%s".', $destinationFilename);
-echo PHP_EOL;
+ConsoleUtils::writeLn('Written to "%s".', $destinationFilename);
diff --git a/demo/append-document-basic.php b/demo/append-document-basic.php
index bda55b12..283e6aa4 100644
--- a/demo/append-document-basic.php
+++ b/demo/append-document-basic.php
@@ -9,19 +9,20 @@
 
 $reportingCloud = new ReportingCloud([
     'api_key' => ConsoleUtils::apiKey(),
+    'test'    => true,
 ]);
 
 $documents = [
     [
-        'filename' => sprintf('%s/test_document.docx', Path::resource()),
+        'filename' => sprintf('%s/maelzel_machine.docx', Path::resource()),
         'divider'  => ReportingCloud::DOCUMENT_DIVIDER_NEW_SECTION,
     ],
     [
-        'filename' => sprintf('%s/test_document.docx', Path::resource()),
+        'filename' => sprintf('%s/maelzel_machine.docx', Path::resource()),
         'divider'  => ReportingCloud::DOCUMENT_DIVIDER_NEW_SECTION,
     ],
     [
-        'filename' => sprintf('%s/test_document.docx', Path::resource()),
+        'filename' => sprintf('%s/maelzel_machine.docx', Path::resource()),
         'divider'  => ReportingCloud::DOCUMENT_DIVIDER_NEW_SECTION,
     ],
 ];
@@ -35,5 +36,4 @@
 
 file_put_contents($destinationFilename, $binaryData);
 
-echo sprintf('Written to "%s".', $destinationFilename);
-echo PHP_EOL;
+ConsoleUtils::writeLn('Written to "%s".', $destinationFilename);
diff --git a/demo/convert-document-docx-to-pdf.php b/demo/convert-document-docx-to-pdf.php
index c8987abe..fdeb9b1f 100644
--- a/demo/convert-document-docx-to-pdf.php
+++ b/demo/convert-document-docx-to-pdf.php
@@ -11,8 +11,8 @@
     'api_key' => ConsoleUtils::apiKey(),
 ]);
 
-$sourceFilename      = sprintf('%s/test_document.docx', Path::resource());
-$destinationFilename = sprintf('%s/test_document.pdf', Path::output());
+$sourceFilename      = sprintf('%s/maelzel_machine.docx', Path::resource());
+$destinationFilename = sprintf('%s/maelzel_machine.pdf', Path::output());
 
 $document = $reportingCloud->convertDocument(
     $sourceFilename,
@@ -20,10 +20,8 @@
 );
 
 if (empty($document)) {
-    echo sprintf('Error converting "%s".', $sourceFilename);
-    echo PHP_EOL;
+    ConsoleUtils::writeLn('Error converting "%s".', $sourceFilename);
 } else {
     file_put_contents($destinationFilename, $document);
-    echo sprintf('"%s" was converted and written to "%s".', $sourceFilename, $destinationFilename);
-    echo PHP_EOL;
+    ConsoleUtils::writeLn('"%s" was converted and written to "%s".', $sourceFilename, $destinationFilename);
 }
diff --git a/demo/convert-document-pdf-to-txt.php b/demo/convert-document-pdf-to-txt.php
index 8a590e0d..59ddc37e 100644
--- a/demo/convert-document-pdf-to-txt.php
+++ b/demo/convert-document-pdf-to-txt.php
@@ -11,8 +11,8 @@
     'api_key' => ConsoleUtils::apiKey(),
 ]);
 
-$sourceFilename      = sprintf('%s/camera_controls.pdf', Path::resource());
-$destinationFilename = sprintf('%s/camera_controls.txt', Path::output());
+$sourceFilename      = sprintf('%s/maelzel_machine.pdf', Path::resource());
+$destinationFilename = sprintf('%s/maelzel_machine.txt', Path::output());
 
 $document = $reportingCloud->convertDocument(
     $sourceFilename,
@@ -20,10 +20,8 @@
 );
 
 if (empty($document)) {
-    echo sprintf('Error converting "%s".', $sourceFilename);
-    echo PHP_EOL;
+    ConsoleUtils::writeLn('Error converting "%s".', $sourceFilename);
 } else {
     file_put_contents($destinationFilename, $document);
-    echo sprintf('"%s" was converted and written to "%s".', $sourceFilename, $destinationFilename);
-    echo PHP_EOL;
+    ConsoleUtils::writeLn('"%s" was converted and written to "%s".', $sourceFilename, $destinationFilename);
 }
diff --git a/demo/find-and-replace-document.php b/demo/find-and-replace-document.php
index 9b872f2e..d0caede4 100644
--- a/demo/find-and-replace-document.php
+++ b/demo/find-and-replace-document.php
@@ -45,5 +45,4 @@
 
 file_put_contents($destinationFilename, $binaryData);
 
-echo sprintf('Written to "%s".', $destinationFilename);
-echo PHP_EOL;
+ConsoleUtils::writeLn('Written to "%s".', $destinationFilename);
diff --git a/demo/get-account-settings.php b/demo/get-account-settings.php
index 5cf7427b..22f17798 100644
--- a/demo/get-account-settings.php
+++ b/demo/get-account-settings.php
@@ -10,4 +10,6 @@
     'api_key' => ConsoleUtils::apiKey(),
 ]);
 
-dump($reportingCloud->getAccountSettings());
+foreach ($reportingCloud->getAccountSettings() as $key => $value) {
+    ConsoleUtils::writeLn('- %s: %s', $key, $value);
+}
diff --git a/demo/get-template-info.php b/demo/get-template-info.php
index 0c6da647..03470b96 100644
--- a/demo/get-template-info.php
+++ b/demo/get-template-info.php
@@ -24,5 +24,5 @@
         $reportingCloud->uploadTemplate($sourceFilename);
     }
 
-    dump($reportingCloud->getTemplateInfo($templateName));
+    ConsoleUtils::dump($reportingCloud->getTemplateInfo($templateName));
 }
diff --git a/demo/get-template-thumbnails.php b/demo/get-template-thumbnails.php
index 933765d5..ac32d9f8 100644
--- a/demo/get-template-thumbnails.php
+++ b/demo/get-template-thumbnails.php
@@ -45,8 +45,7 @@
 
     file_put_contents($destinationFilename, $binaryData);
 
-    echo sprintf('"%s" was written to "%s".', $templateName, $destinationFilename);
-    echo PHP_EOL;
+    ConsoleUtils::writeLn('"%s" was written to "%s".', $templateName, $destinationFilename);
 }
 
 // ---------------------------------------------------------------------------------------------------------------------
diff --git a/demo/instantiation.php b/demo/instantiation.php
index 9a6f0e59..b1abddf5 100644
--- a/demo/instantiation.php
+++ b/demo/instantiation.php
@@ -4,6 +4,7 @@
 include_once __DIR__ . '/bootstrap.php';
 
 use TxTextControl\ReportingCloud\ReportingCloud;
+use TxTextControl\ReportingCloud\Stdlib\ConsoleUtils;
 
 // ---------------------------------------------------------------------------------------------------------------------
 
@@ -13,7 +14,7 @@
     'api_key' => 'xxxxxxxx',
 ]);
 
-dump($reportingCloud);
+ConsoleUtils::dump($reportingCloud);
 
 // ---------------------------------------------------------------------------------------------------------------------
 
@@ -23,7 +24,7 @@
 
 $reportingCloud->setApiKey('xxxxxxxx');
 
-dump($reportingCloud);
+ConsoleUtils::dump($reportingCloud);
 
 // ---------------------------------------------------------------------------------------------------------------------
 
@@ -39,7 +40,7 @@
     'debug'    => true,
 ]);
 
-dump($reportingCloud);
+ConsoleUtils::dump($reportingCloud);
 
 // ---------------------------------------------------------------------------------------------------------------------
 
@@ -55,6 +56,6 @@
 $reportingCloud->setTimeout(100);
 $reportingCloud->setDebug(true);
 
-dump($reportingCloud);
+ConsoleUtils::dump($reportingCloud);
 
 // ---------------------------------------------------------------------------------------------------------------------
diff --git a/demo/list-fonts.php b/demo/list-fonts.php
index 7fe3b48d..23eff643 100644
--- a/demo/list-fonts.php
+++ b/demo/list-fonts.php
@@ -10,4 +10,6 @@
     'api_key' => ConsoleUtils::apiKey(),
 ]);
 
-dump($reportingCloud->getFontList());
+foreach ($reportingCloud->getFontList() as $font) {
+    ConsoleUtils::writeLn('- %s', $font);
+}
diff --git a/demo/merge-document-advanced.php b/demo/merge-document-advanced.php
index 49fa7b88..0d8b90f3 100644
--- a/demo/merge-document-advanced.php
+++ b/demo/merge-document-advanced.php
@@ -9,7 +9,6 @@
 
 $reportingCloud = new ReportingCloud([
     'api_key' => ConsoleUtils::apiKey(),
-    'test'    => true,
 ]);
 
 // ---------------------------------------------------------------------------------------------------------------------
@@ -98,8 +97,7 @@
 
 file_put_contents($destinationFilename, $arrayOfBinaryData[0]);
 
-echo sprintf('Written to "%s".', $destinationFilename);
-echo PHP_EOL;
+ConsoleUtils::writeLn('Written to "%s".', $destinationFilename);
 
 // ---------------------------------------------------------------------------------------------------------------------
 
@@ -125,8 +123,7 @@
 
 file_put_contents($destinationFilename, $arrayOfBinaryData[0]);
 
-echo sprintf('Written to "%s".', $destinationFilename);
-echo PHP_EOL;
+ConsoleUtils::writeLn('Written to "%s".', $destinationFilename);
 
 // ---------------------------------------------------------------------------------------------------------------------
 
@@ -172,8 +169,7 @@
 
 file_put_contents($destinationFilename, $arrayOfBinaryData[0]);
 
-echo sprintf('Written to "%s".', $destinationFilename);
-echo PHP_EOL;
+ConsoleUtils::writeLn('Written to "%s".', $destinationFilename);
 
 // ---------------------------------------------------------------------------------------------------------------------
 
@@ -200,8 +196,7 @@
 
 file_put_contents($destinationFilename, $arrayOfBinaryData[0]);
 
-echo sprintf('Written to "%s".', $destinationFilename);
-echo PHP_EOL;
+ConsoleUtils::writeLn('Written to "%s".', $destinationFilename);
 
 // ---------------------------------------------------------------------------------------------------------------------
 
@@ -236,8 +231,7 @@
 
     file_put_contents($destinationFilename, $binaryData);
 
-    echo sprintf('Written to "%s".', $destinationFilename);
-    echo PHP_EOL;
+    ConsoleUtils::writeLn('Written to "%s".', $destinationFilename);
 }
 
 // ---------------------------------------------------------------------------------------------------------------------
diff --git a/demo/merge-document-basic.php b/demo/merge-document-basic.php
index f129cefe..eb39e4f8 100644
--- a/demo/merge-document-basic.php
+++ b/demo/merge-document-basic.php
@@ -29,5 +29,4 @@
 
 file_put_contents($destinationFilename, $arrayOfBinaryData[0]);
 
-echo sprintf('Written to "%s".', $destinationFilename);
-echo PHP_EOL;
+ConsoleUtils::writeLn('Written to "%s".', $destinationFilename);
diff --git a/demo/merge-document-html.php b/demo/merge-document-html.php
index d0bf0e18..e989c80f 100644
--- a/demo/merge-document-html.php
+++ b/demo/merge-document-html.php
@@ -39,5 +39,4 @@
 
 file_put_contents($destinationFilename, $arrayOfBinaryData[0]);
 
-echo sprintf('Written to "%s".', $destinationFilename);
-echo PHP_EOL;
+ConsoleUtils::writeLn('Written to "%s".', $destinationFilename);
diff --git a/demo/merge-document-image.php b/demo/merge-document-image.php
index 04e58008..a50542d6 100644
--- a/demo/merge-document-image.php
+++ b/demo/merge-document-image.php
@@ -36,5 +36,4 @@
 
 file_put_contents($destinationFilename, $arrayOfBinaryData[0]);
 
-echo sprintf('Written to "%s".', $destinationFilename);
-echo PHP_EOL;
+ConsoleUtils::writeLn('Written to "%s".', $destinationFilename);
diff --git a/demo/proofing.php b/demo/proofing.php
index 0ed4b1d0..5349d6c9 100644
--- a/demo/proofing.php
+++ b/demo/proofing.php
@@ -10,8 +10,8 @@
     'api_key' => ConsoleUtils::apiKey(),
 ]);
 
-dump($reportingCloud->getAvailableDictionaries());
+ConsoleUtils::dump($reportingCloud->getAvailableDictionaries());
 
-dump($reportingCloud->getProofingSuggestions('ssky', 'en_US.dic', 10));
+ConsoleUtils::dump($reportingCloud->getProofingSuggestions('ssky', 'en_US.dic', 10));
 
-dump($reportingCloud->proofingCheck('Thiss is a testt about rockkets in the ssky', 'en_US.dic'));
+ConsoleUtils::dump($reportingCloud->proofingCheck('Thiss is a testt about rockkets in the ssky', 'en_US.dic'));
diff --git a/demo/run-all.php b/demo/run-all.php
index 39401590..cd19a483 100644
--- a/demo/run-all.php
+++ b/demo/run-all.php
@@ -3,32 +3,46 @@
 
 include_once __DIR__ . '/bootstrap.php';
 
+use TxTextControl\ReportingCloud\Stdlib\ConsoleUtils;
+
 // ---------------------------------------------------------------------------------------------------------------------
 
 /**
- * Return an array of filenames which should be executed
+ * Return an ArrayObject FileInfos which should be executed
  *
- * @return array
+ * @return ArrayObject
  *
  */
-$getFilenames = function (): array {
+$getDemos = function (): ArrayObject {
+
+    $arrayObject = new ArrayObject();
+    $iterator    = new DirectoryIterator(__DIR__);
 
-    $ret = [];
+    $extensions = [
+        'php',
+    ];
 
-    $di = new DirectoryIterator(__DIR__);
-    foreach ($di as $fileInfo) {
-        if (in_array($fileInfo->getFilename(), [basename(__FILE__), 'bootstrap.php', 'init.php'])) {
+    $skipFiles = [
+        basename(__FILE__),
+        'bootstrap.php',
+        'init.php',
+    ];
+
+    foreach ($iterator as $fileInfo) {
+        if (!in_array($fileInfo->getExtension(), $extensions)) {
             continue;
         }
-        if ('php' !== $fileInfo->getExtension()) {
+        if (in_array($fileInfo->getFilename(), $skipFiles)) {
             continue;
         }
-        $ret[] = (string) $fileInfo->getPathname();
+        $index = $fileInfo->getFilename();
+        $value = clone $fileInfo;
+        $arrayObject->offsetSet($index, $value);
     }
 
-    sort($ret);
+    $arrayObject->ksort();
 
-    return $ret;
+    return $arrayObject;
 };
 
 // ---------------------------------------------------------------------------------------------------------------------
@@ -38,28 +52,29 @@
 
 // ---------------------------------------------------------------------------------------------------------------------
 
-$filenames = $getFilenames();
-$count     = count($filenames);
-$counter   = 0;
+$counter   = 1;
+$fileInfos = $getDemos();
 
-foreach ($filenames as $filename) {
+foreach ($fileInfos as $fileInfo) {
 
-    $counter++;
-
-    $filename = (string) $filename;
-
-    echo sprintf('%d/%d) Executing "%s"...', $counter, $count, basename($filename));
-    echo PHP_EOL;
+    ConsoleUtils::writeLn(
+        '%d/%d) Executing "%s"...',
+        $counter,
+        $fileInfos->count(),
+        $fileInfo->getFilename()
+    );
     echo PHP_EOL;
-
-    $command = sprintf('%s %s', PHP_BINARY, escapeshellarg($filename));
+    $command = sprintf(
+        '%s %s',
+        escapeshellarg(PHP_BINARY),
+        escapeshellarg($fileInfo->getPathname())
+    );
     passthru($command);
-
-    echo PHP_EOL;
-    echo '...DONE.';
-    echo PHP_EOL;
-    echo PHP_EOL;
     echo PHP_EOL;
+    ConsoleUtils::writeLn('...DONE.');
+    echo PHP_EOL. PHP_EOL;
+
+    $counter++;
 }
 
 // ---------------------------------------------------------------------------------------------------------------------
diff --git a/demo/template-management.php b/demo/template-management.php
index 209380ca..7052307a 100644
--- a/demo/template-management.php
+++ b/demo/template-management.php
@@ -24,26 +24,21 @@
 // Uploaded, if it is not
 
 if (!$reportingCloud->templateExists($templateName)) {
-    echo sprintf('"%s" is not in template storage', $templateName);
-    echo PHP_EOL;
+    ConsoleUtils::writeLn('"%s" is not in template storage', $templateName);
     if ($reportingCloud->uploadTemplate($sourceFilename)) {
-        echo sprintf('Uploaded "%s".', $sourceFilename);
-        echo PHP_EOL;
+        ConsoleUtils::writeLn('Uploaded "%s".', $sourceFilename);
     } else {
-        echo sprintf('Error uploading "%s".', $sourceFilename);
-        echo PHP_EOL;
+        ConsoleUtils::writeLn('Error uploading "%s".', $sourceFilename);
     }
 }
 
-
 // ---------------------------------------------------------------------------------------------------------------------
 
 // Get the number of pages in a template
 
 $pageCount = $reportingCloud->getTemplatePageCount($templateName);
 
-echo sprintf('"%s" contains %d page%s.', $templateName, $pageCount, $pageCount > 1 ? 's' : '');
-echo PHP_EOL;
+ConsoleUtils::writeLn('"%s" contains %d page%s.', $templateName, $pageCount, $pageCount > 1 ? 's' : '');
 
 // ---------------------------------------------------------------------------------------------------------------------
 
@@ -52,14 +47,11 @@
 $binaryData = $reportingCloud->downloadTemplate($templateName);
 
 if ($binaryData) {
-    echo sprintf('"%s" was downloaded.', $templateName);
-    echo PHP_EOL;
+    ConsoleUtils::writeLn('"%s" was downloaded.', $templateName);
     file_put_contents($destinationFilename, $binaryData);
-    echo sprintf('"%s" was written to "%s".', $templateName, $destinationFilename);
-    echo PHP_EOL;
+    ConsoleUtils::writeLn('"%s" was written to "%s".', $templateName, $destinationFilename);
 } else {
-    echo sprintf('Error downloading "%s".', $templateName);
-    echo PHP_EOL;
+    ConsoleUtils::writeLn('Error downloading "%s".', $templateName);
 }
 
 // ---------------------------------------------------------------------------------------------------------------------
@@ -68,27 +60,22 @@
 
 $templateCount = $reportingCloud->getTemplateCount();
 
-echo sprintf('There are %d template%s in template storage.', $templateCount, $templateCount > 1 ? 's' : '');
-echo PHP_EOL;
+ConsoleUtils::writeLn('There are %d template%s in template storage.', $templateCount, $templateCount > 1 ? 's' : '');
 
 // ---------------------------------------------------------------------------------------------------------------------
 
 // Get an array of all templates in template storage
 
-echo "They are as follows:";
-echo PHP_EOL;
+ConsoleUtils::writeLn("They are as follows:");
 
 foreach ($reportingCloud->getTemplateList() as $record) {
 
     $templateName      = $record['template_name'];
     $modifiedFormatted = date('r', $record['modified']);    // modified is a unix timestamp
 
-    echo sprintf('- %s', $templateName);
-    echo PHP_EOL;
-    echo sprintf('- %s', $record['modified']);
-    echo PHP_EOL;
-    echo sprintf('- %s', $modifiedFormatted);
-    echo PHP_EOL . PHP_EOL;
+    ConsoleUtils::writeLn('- %s', $templateName);
+    ConsoleUtils::writeLn('- %s', $record['modified']);
+    ConsoleUtils::writeLn('- %s', $modifiedFormatted);
 }
 
 // ---------------------------------------------------------------------------------------------------------------------
@@ -96,11 +83,9 @@
 // Delete a template in template storage
 
 if ($reportingCloud->deleteTemplate($templateName)) {
-    echo sprintf('"%s" was deleted.', $templateName);
-    echo PHP_EOL;
+    ConsoleUtils::writeLn('"%s" was deleted.', $templateName);
 } else {
-    echo sprintf('Error deleting "%s".', $templateName);
-    echo PHP_EOL;
+    ConsoleUtils::writeLn('Error deleting "%s".', $templateName);
 }
 
 // ---------------------------------------------------------------------------------------------------------------------
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index ba6bc0a3..df15db73 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -17,9 +17,6 @@
     <filter>
         <whitelist processUncoveredFilesFromWhitelist="true">
             <directory suffix=".php">src</directory>
-            <exclude>
-                <file>src/Stdlib/ConsoleUtils.php</file>
-            </exclude>
         </whitelist>
     </filter>
 
diff --git a/resource/camera_controls.pdf b/resource/camera_controls.pdf
deleted file mode 100644
index 8198a797..00000000
Binary files a/resource/camera_controls.pdf and /dev/null differ
diff --git a/resource/maelzel_machine.docx b/resource/maelzel_machine.docx
new file mode 100644
index 00000000..8047249d
Binary files /dev/null and b/resource/maelzel_machine.docx differ
diff --git a/resource/maelzel_machine.pdf b/resource/maelzel_machine.pdf
new file mode 100644
index 00000000..9706d84d
Binary files /dev/null and b/resource/maelzel_machine.pdf differ
diff --git a/src/Stdlib/ConsoleUtils.php b/src/Stdlib/ConsoleUtils.php
index 62a1ea3a..49f36e04 100644
--- a/src/Stdlib/ConsoleUtils.php
+++ b/src/Stdlib/ConsoleUtils.php
@@ -27,7 +27,7 @@ class ConsoleUtils extends AbstractStdlib
      *
      * @const REPORTING_CLOUD_API_KEY
      */
-    private const API_KEY = 'REPORTING_CLOUD_API_KEY';
+    public const API_KEY = 'REPORTING_CLOUD_API_KEY';
 
     /**
      * Check that either the API key has been defined in environment variables
@@ -118,4 +118,36 @@ public static function errorMessage(): string
 
         return $ret;
     }
+
+    /**
+     * Dump information about a variable
+     * (var_dump is wrapped to suppress psalm warning)
+     *
+     * @param mixed|null $array
+     *
+     * @psalm-suppress ForbiddenCode
+     */
+    public static function dump($array): void
+    {
+        var_dump($array);
+    }
+
+    /**
+     * Write a line to the console
+     *
+     * @param string $format
+     * @param mixed  ...$args
+     */
+    public static function writeLn(string $format, ...$args): void
+    {
+        $args = (array) $args;
+
+        if (count($args) > 0) {
+            echo vsprintf($format, $args);
+        } else {
+            echo $format;
+        }
+
+        echo PHP_EOL;
+    }
 }
diff --git a/test/Stdlib/ConsoleUtilsTest.php b/test/Stdlib/ConsoleUtilsTest.php
new file mode 100644
index 00000000..989ca69e
--- /dev/null
+++ b/test/Stdlib/ConsoleUtilsTest.php
@@ -0,0 +1,118 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * ReportingCloud PHP SDK
+ *
+ * PHP SDK for ReportingCloud Web API. Authored and supported by Text Control GmbH.
+ *
+ * @link      https://www.reporting.cloud to learn more about ReportingCloud
+ * @link      https://github.com/TextControl/txtextcontrol-reportingcloud-php for the canonical source repository
+ * @license   https://raw.githubusercontent.com/TextControl/txtextcontrol-reportingcloud-php/master/LICENSE.md
+ * @copyright © 2019 Text Control GmbH
+ */
+
+namespace TxTextControlTest\ReportingCloud\Path;
+
+use PHPUnit\Framework\TestCase;
+use TxTextControl\ReportingCloud\Stdlib\ConsoleUtils;
+
+/**
+ * Class ConsoleUtilsTest
+ *
+ * @package TxTextControlTest\ReportingCloud
+ * @author  Jonathan Maron (@JonathanMaron)
+ */
+class ConsoleUtilsTest extends TestCase
+{
+    public function testCheckCredentials(): void
+    {
+        $key = ConsoleUtils::API_KEY;
+
+        $oldValue = getenv($key);
+
+        putenv("${key}=");
+
+        $this->assertFalse(ConsoleUtils::checkCredentials());
+
+        putenv("${key}={$oldValue}");
+
+        $this->assertTrue(ConsoleUtils::checkCredentials());
+    }
+
+    public function testApiKeyFromEnv(): void
+    {
+        $key   = ConsoleUtils::API_KEY;
+        $value = 'xxxxxxxxxxxxxxxxxxxx';
+
+        $oldValue = getenv($key);
+
+        putenv("${key}={$value}");
+
+        $this->assertEquals(ConsoleUtils::apiKey(), $value);
+
+        putenv("${key}={$oldValue}");
+    }
+
+    public function testErrorMessage(): void
+    {
+        $errorMessage = ConsoleUtils::errorMessage();
+
+        $this->assertContains('Error: ReportingCloud API key not defined.', $errorMessage);
+        $this->assertContains('For further assistance and customer service please refer to:', $errorMessage);
+    }
+
+    public function testDump(): void
+    {
+        ob_start();
+        ConsoleUtils::dump([1, 2, 3, 4, 5]);
+        $actual = ob_get_clean();
+
+        $this->assertContains('array(5)', $actual);
+
+        $this->assertContains('[0]', $actual);
+        $this->assertContains('[1]', $actual);
+        $this->assertContains('[2]', $actual);
+        $this->assertContains('[3]', $actual);
+        $this->assertContains('[4]', $actual);
+
+        $this->assertContains('int(1)', $actual);
+        $this->assertContains('int(2)', $actual);
+        $this->assertContains('int(3)', $actual);
+        $this->assertContains('int(4)', $actual);
+        $this->assertContains('int(5)', $actual);
+    }
+
+    public function testWriteLineWith0Args(): void
+    {
+        $expected = '10 hello "world".' . PHP_EOL;
+
+        ob_start();
+        ConsoleUtils::writeLn('10 hello "world".');
+        $actual = ob_get_clean();
+
+        $this->assertEquals($expected, $actual);
+    }
+
+    public function testWriteLineWith1Arg(): void
+    {
+        $expected = '10 x hello.' . PHP_EOL;
+
+        ob_start();
+        ConsoleUtils::writeLn('%d x hello.', 10);
+        $actual = ob_get_clean();
+
+        $this->assertEquals($expected, $actual);
+    }
+
+    public function testWriteLineWith2Args(): void
+    {
+        $expected = '10 x hello "world".' . PHP_EOL;
+
+        ob_start();
+        ConsoleUtils::writeLn('%d x hello "%s".', 10, 'world');
+        $actual = ob_get_clean();
+
+        $this->assertEquals($expected, $actual);
+    }
+}