diff --git a/pyproject.toml b/pyproject.toml
index a741452..86f6981 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "cmi_docx"
-version = "0.1.6"
+version = "0.2.0"
 description = ".docx utilities"
 authors = ["Reinder Vos de Wael <reinder.vosdewael@childmind.org>"]
 license = "LGPL-2.1"
diff --git a/src/cmi_docx/__init__.py b/src/cmi_docx/__init__.py
index e5edcac..8b39fc2 100644
--- a/src/cmi_docx/__init__.py
+++ b/src/cmi_docx/__init__.py
@@ -3,4 +3,5 @@
 from cmi_docx.document import ExtendDocument  # noqa: F401
 from cmi_docx.paragraph import ExtendParagraph, FindParagraph  # noqa: F401
 from cmi_docx.run import ExtendRun, FindRun  # noqa: F401
+from cmi_docx.styles import ParagraphStyle, RunStyle, TableStyle  # noqa: F401
 from cmi_docx.table import ExtendCell  # noqa: F401
diff --git a/src/cmi_docx/document.py b/src/cmi_docx/document.py
index 9c0bc46..5dbbae6 100644
--- a/src/cmi_docx/document.py
+++ b/src/cmi_docx/document.py
@@ -1,12 +1,11 @@
 """Extends a python-docx Word document with additional functionality."""
 
 import pathlib
-from typing import Any
 
 from docx import document
 from docx.text import paragraph as docx_paragraph
 
-from cmi_docx import paragraph, run
+from cmi_docx import paragraph, run, styles
 
 
 class ExtendDocument:
@@ -46,7 +45,7 @@ def find_in_runs(self, needle: str) -> list[run.FindRun]:
         ]
 
     def replace(
-        self, needle: str, replace: str, style: dict[str, Any] | None = None
+        self, needle: str, replace: str, style: styles.RunStyle | None = None
     ) -> None:
         """Finds and replaces text in a Word document.
 
diff --git a/src/cmi_docx/paragraph.py b/src/cmi_docx/paragraph.py
index 31d6f5e..53fc808 100644
--- a/src/cmi_docx/paragraph.py
+++ b/src/cmi_docx/paragraph.py
@@ -4,13 +4,12 @@
 import dataclasses
 import itertools
 import re
-from typing import Any
 
 from docx.enum import text
 from docx.text import paragraph as docx_paragraph
 from docx.text import run as docx_run
 
-from cmi_docx import run
+from cmi_docx import run, styles
 
 
 @dataclasses.dataclass
@@ -99,7 +98,7 @@ def find_in_runs(self, needle: str) -> list[run.FindRun]:
         return run_finds
 
     def replace(
-        self, needle: str, replace: str, style: dict[str, Any] | None = None
+        self, needle: str, replace: str, style: styles.RunStyle | None = None
     ) -> None:
         """Finds and replaces text in a Word paragraph.
 
@@ -116,7 +115,7 @@ def replace(
         for run_find in run_finder:
             run_find.replace(replace, style)
 
-    def insert_run(self, index: int, text: str, style: dict[str, Any]) -> docx_run.Run:
+    def insert_run(self, index: int, text: str, style: styles.RunStyle) -> docx_run.Run:
         """Inserts a run into a paragraph.
 
         Args:
@@ -137,7 +136,7 @@ def insert_run(self, index: int, text: str, style: dict[str, Any]) -> docx_run.R
             else:
                 self.paragraph.runs[index]._element.addprevious(new_run)
 
-        run.ExtendRun(self.paragraph.runs[index]).format(**style)
+        run.ExtendRun(self.paragraph.runs[index]).format(style)
         return self.paragraph.runs[index]
 
     def format(
@@ -178,8 +177,10 @@ def format(
 
         for paragraph_run in self.paragraph.runs:
             run.ExtendRun(paragraph_run).format(
-                bold=bold,
-                italics=italics,
-                font_size=font_size,
-                font_rgb=font_rgb,
+                styles.RunStyle(
+                    bold=bold,
+                    italic=italics,
+                    font_size=font_size,
+                    font_rgb=font_rgb,
+                )
             )
diff --git a/src/cmi_docx/run.py b/src/cmi_docx/run.py
index 3a3e494..9f85bf2 100644
--- a/src/cmi_docx/run.py
+++ b/src/cmi_docx/run.py
@@ -1,10 +1,10 @@
 """Module for extending python-docx Run objects."""
 
-from typing import Any
-
 from docx import shared
 from docx.text import paragraph as docx_paragraph
 
+from cmi_docx import styles
+
 
 class FindRun:
     """Data class for maintaing find results in runs.
@@ -40,7 +40,7 @@ def runs(self) -> list[docx_paragraph.Run]:
         """Returns the runs containing the text."""
         return self.paragraph.runs[self.run_indices[0] : self.run_indices[1] + 1]
 
-    def replace(self, replace: str, style: dict[str, Any] | None = None) -> None:
+    def replace(self, replace: str, style: styles.RunStyle | None = None) -> None:
         """Replaces the text in the runs with the replacement text.
 
         Args:
@@ -79,7 +79,7 @@ def _replace_without_style(self, replace: str) -> None:
                 run.clear()
             self.runs[-1].text = self.runs[-1].text[end:]
 
-    def _replace_with_style(self, replace: str, style: dict[str, Any]) -> None:
+    def _replace_with_style(self, replace: str, style: styles.RunStyle) -> None:
         """Replaces the text in the runs with the replacement text and style.
 
         Args:
@@ -95,13 +95,13 @@ def _replace_with_style(self, replace: str, style: dict[str, Any]) -> None:
         new_run = self.paragraph._element._new_r()
         new_run.text = replace
         self.paragraph.runs[self.run_indices[0]]._element.addnext(new_run)
-        ExtendRun(self.paragraph.runs[self.run_indices[0] + 1]).format(**style)
+        ExtendRun(self.paragraph.runs[self.run_indices[0] + 1]).format(style)
 
         post_run = self.paragraph._element._new_r()
         post_run.text = post
         self.paragraph.runs[self.run_indices[0] + 1]._element.addnext(post_run)
         pre_style = ExtendRun(self.paragraph.runs[self.run_indices[0]]).get_format()
-        ExtendRun(self.paragraph.runs[self.run_indices[0] + 2]).format(**pre_style)
+        ExtendRun(self.paragraph.runs[self.run_indices[0] + 2]).format(pre_style)
 
     def __lt__(self, other: "FindRun") -> bool:
         """Sorts FindRun in order of appearance in the paragraph.
@@ -135,59 +135,43 @@ def __init__(self, run: docx_paragraph.Run) -> None:
         """
         self.run = run
 
-    def format(
-        self,
-        *,
-        bold: bool | None = None,
-        italics: bool | None = None,
-        underline: bool | None = None,
-        superscript: bool | None = None,
-        subscript: bool | None = None,
-        font_size: int | None = None,
-        font_rgb: tuple[int, int, int] | None = None,
-    ) -> None:
+    def format(self, style: styles.RunStyle) -> None:
         """Formats a run in a Word document.
 
         Args:
-            bold: Whether to bold the run.
-            italics: Whether to italicize the run.
-            underline: Whether to underline the run.
-            superscript: Whether to superscript the run.
-            subscript: Whether to subscript the run.
-            font_size: The font size of the run.
-            font_rgb: The font color of the run.
+            style: The style to apply to the run.
         """
-        if superscript and subscript:
+        if style.superscript and style.subscript:
             msg = "Cannot have superscript and subscript at the same time."
             raise ValueError(msg)
 
-        if bold is not None:
-            self.run.bold = bold
-        if italics is not None:
-            self.run.italic = italics
-        if underline is not None:
-            self.run.underline = underline
-        if superscript is not None:
-            self.run.font.superscript = superscript
-        if subscript is not None:
-            self.run.font.subscript = subscript
-        if font_size is not None:
-            self.run.font.size = font_size
-        if font_rgb is not None:
-            self.run.font.color.rgb = shared.RGBColor(*font_rgb)
-
-    def get_format(self) -> dict[str, Any]:
+        if style.bold is not None:
+            self.run.bold = style.bold
+        if style.italic is not None:
+            self.run.italic = style.italic
+        if style.underline is not None:
+            self.run.underline = style.underline
+        if style.superscript is not None:
+            self.run.font.superscript = style.superscript
+        if style.subscript is not None:
+            self.run.font.subscript = style.subscript
+        if style.font_size is not None:
+            self.run.font.size = style.font_size
+        if style.font_rgb is not None:
+            self.run.font.color.rgb = shared.RGBColor(*style.font_rgb)
+
+    def get_format(self) -> styles.RunStyle:
         """Returns the formatting of the run.
 
         Returns:
             The formatting of the run.
         """
-        return {
-            "bold": self.run.bold,
-            "italics": self.run.italic,
-            "underline": self.run.underline,
-            "superscript": self.run.font.superscript,
-            "subscript": self.run.font.subscript,
-            "font_size": self.run.font.size,
-            "font_rgb": self.run.font.color.rgb,
-        }
+        return styles.RunStyle(
+            bold=self.run.bold,
+            italic=self.run.italic,
+            underline=self.run.underline,
+            superscript=self.run.font.superscript,
+            subscript=self.run.font.subscript,
+            font_size=self.run.font.size,
+            font_rgb=self.run.font.color.rgb,
+        )
diff --git a/src/cmi_docx/styles.py b/src/cmi_docx/styles.py
new file mode 100644
index 0000000..e3993b3
--- /dev/null
+++ b/src/cmi_docx/styles.py
@@ -0,0 +1,42 @@
+"""Style interfaces for document properties."""
+
+import dataclasses
+
+from docx.enum import text
+
+
+@dataclasses.dataclass
+class RunStyle:
+    """Dataclass for run style arguments."""
+
+    bold: bool | None = None
+    italic: bool | None = None
+    underline: bool | None = None
+    superscript: bool | None = None
+    subscript: bool | None = None
+    font_size: int | None = None
+    font_rgb: tuple[int, int, int] | None = None
+
+
+@dataclasses.dataclass
+class ParagraphStyle:
+    """Dataclass for paragraph style arguments."""
+
+    bold: bool | None = None
+    italic: bool | None = None
+    font_size: int | None = None
+    font_rgb: tuple[int, int, int] | None = None
+    line_spacing: float | None = None
+    space_before: float | None = None
+    space_after: float | None = None
+    alignment: text.WD_PARAGRAPH_ALIGNMENT | None = None
+
+
+@dataclasses.dataclass
+class TableStyle:
+    """Dataclass for table style arguments."""
+
+    space_before: float | None = None
+    space_after: float | None = None
+    background_rgb: tuple[int, int, int] | None = None
+    paragraph_style: ParagraphStyle | None = None
diff --git a/tests/test_document.py b/tests/test_document.py
index f06270c..2dadc1e 100644
--- a/tests/test_document.py
+++ b/tests/test_document.py
@@ -3,7 +3,7 @@
 import docx
 import pytest
 
-from cmi_docx import document
+from cmi_docx import document, styles
 
 
 def test_find_in_paragraphs() -> None:
@@ -96,7 +96,7 @@ def test_replace_with_style() -> None:
     doc.add_paragraph("Hello, world!")
     extend_document = document.ExtendDocument(doc)
 
-    extend_document.replace("Hello", "Goodbye", {"bold": True})
+    extend_document.replace("Hello", "Goodbye", styles.RunStyle(bold=True))
 
     assert doc.paragraphs[0].text == "Goodbye, world!"
     assert not doc.paragraphs[0].runs[0].bold
diff --git a/tests/test_paragraph.py b/tests/test_paragraph.py
index 69e6c1d..0514da4 100644
--- a/tests/test_paragraph.py
+++ b/tests/test_paragraph.py
@@ -4,7 +4,7 @@
 import pytest
 from docx.text import paragraph as docx_paragraph
 
-from cmi_docx import paragraph
+from cmi_docx import paragraph, styles
 
 
 @pytest.fixture
@@ -96,7 +96,7 @@ def test_insert_run_middle() -> None:
     para.add_run("world!")
     extend_paragraph = paragraph.ExtendParagraph(para)
 
-    extend_paragraph.insert_run(1, "beautiful ", {"bold": True})
+    extend_paragraph.insert_run(1, "beautiful ", styles.RunStyle(bold=True))
 
     assert para.text == "Hello beautiful world!"
     assert para.runs[1].bold
@@ -108,7 +108,7 @@ def test_insert_run_start() -> None:
     para = document.add_paragraph("world!")
     extend_paragraph = paragraph.ExtendParagraph(para)
 
-    extend_paragraph.insert_run(0, "Hello ", {"bold": True})
+    extend_paragraph.insert_run(0, "Hello ", styles.RunStyle(bold=True))
 
     assert para.text == "Hello world!"
     assert para.runs[0].bold
@@ -121,7 +121,7 @@ def test_insert_run_end(index: int) -> None:
     para = document.add_paragraph("Hello")
     extend_paragraph = paragraph.ExtendParagraph(para)
 
-    extend_paragraph.insert_run(index, " world!", {"bold": True})
+    extend_paragraph.insert_run(index, " world!", styles.RunStyle(bold=True))
 
     assert para.text == "Hello world!"
     assert para.runs[1].bold
@@ -133,7 +133,7 @@ def test_insert_run_empty() -> None:
     para = document.add_paragraph("")
     extend_paragraph = paragraph.ExtendParagraph(para)
 
-    extend_paragraph.insert_run(0, "Hello", {"bold": True})
+    extend_paragraph.insert_run(0, "Hello", styles.RunStyle(bold=True))
 
     assert para.text == "Hello"
     assert para.runs[0].bold
diff --git a/tests/test_run.py b/tests/test_run.py
index d570201..53f2d4c 100644
--- a/tests/test_run.py
+++ b/tests/test_run.py
@@ -3,7 +3,7 @@
 import docx
 import pytest
 
-from cmi_docx import run
+from cmi_docx import run, styles
 
 
 def test_find_run_lt_same_paragraph() -> None:
@@ -75,7 +75,7 @@ def test_find_run_replace_with_style() -> None:
     paragraph.add_run("Hello, world!")
 
     find_run = run.FindRun(paragraph, (0, 1), (0, 5))
-    find_run.replace("Goodbye", {"bold": True})
+    find_run.replace("Goodbye", styles.RunStyle(bold=True))
 
     assert paragraph.text == "Goodbye, world!"
     assert not paragraph.runs[0].bold
@@ -91,11 +91,13 @@ def test_extend_run_format() -> None:
 
     extend_run = run.ExtendRun(paragraph_run)
     extend_run.format(
-        bold=True,
-        italics=True,
-        underline=True,
-        superscript=True,
-        font_rgb=(1, 0, 0),
+        styles.RunStyle(
+            bold=True,
+            italic=True,
+            underline=True,
+            superscript=True,
+            font_rgb=(1, 0, 0),
+        )
     )
 
     assert paragraph_run.bold