diff --git a/IVOAArchitecture.tex b/IVOAArchitecture.tex
index 0d6520f..4c8e168 100644
--- a/IVOAArchitecture.tex
+++ b/IVOAArchitecture.tex
@@ -290,9 +290,9 @@ \subsection{CDP}
 
 The Credential Delegation Protocol (CDP) \citep{2010ivoa.spec.0218P}
 allows a client program to delegate a user's credentials
-to a service such that that service may make requests of other services
+to a service such that the service may make requests to other services
 in the name of that
-user. The protocol defines a REST service that works alongside other IVO
+user. The protocol defines a REST service that works alongside other IVOA
 services to enable
 such a delegation in a secure manner. In addition to defining the
 specifics of the service
@@ -926,7 +926,7 @@ \subsection{Coordinates}
 The Coordinates Data Model \citep{2022ivoa.specQ1004R} 
 covers the following concepts: description of single and
 multi-dimensional
-coordinate space and coordinates within that space, cordinate frames
+coordinate space and coordinates within that space, coordinate frames
 providing metadata describing the
 origin and orientation of the coordinate space, the definition of simple
 domain-specific coordinate
@@ -1371,7 +1371,7 @@ \section{Acronym Lookup Table}
         {Resource Metadata} &
         {Resource Metadata - model/serialisation standard} \\
         {SAMP} &
-        {Simple Application Messagign Protocol - stanadrd} \\
+        {Simple Application Messaging Protocol - standard} \\
         {SIA} &
         {Simple Image Access - standard} \\
         {SIAP} &
@@ -1403,11 +1403,11 @@ \section{Acronym Lookup Table}
         {TAPRegExt} &
         {Table Access Protocol Registry Extension - standard} \\
         {UCD} &
-        {Univeral Content Descriptor - standard} \\
+        {Universal Content Descriptor - standard} \\
         {URI}  &
-        {Universal Resource Identifider - standard} \\
+        {Universal Resource Identifier - standard} \\
         {UWS}  &
-        {Univeral Worker service - standard} \\
+        {Universal Worker service - standard} \\
         {Vocabularies} &
         {Vocabularies standard for the IVOA} \\
         {VODataService} &