diff --git a/book/_toc.yml b/book/_toc.yml
index 82a6f3e..7af7fd9 100644
--- a/book/_toc.yml
+++ b/book/_toc.yml
@@ -26,7 +26,7 @@ parts:
     - file: installation-and-setup/creating_content.md
   - caption: Features
     chapters:
-    - file: basic-features/overview
+    - file: basic-features/overview.md
       sections:
       - file: basic-features/jupyterbook.md
       - file: basic-features/figures.md
@@ -37,6 +37,8 @@ parts:
       - file: basic-features/Code_block_figures
       - file: basic-features/banner
         title: Banner or Announcement
+    - file: basic-features/external-features.md
+      sections:
       - file: basic-features/hypothesis.md
       - file: basic-features/utterances.md
     - file: features/overview.md
@@ -44,14 +46,10 @@ parts:
       - file: external/TeachBooks/README.md
       - file: external/deploy-book-workflow/README.md
       - file: external/Nested-Books/README.md
-      - file: features/sphinx_extensions.md
-        sections: 
-        - file: external/Download-Link-Replacer/README.md
-        - file: external/Sphinx-Image-Inverter/README.md
-        - file: features/custom-launch-button.md
-        - file: external/JupyterBook-Patches/README.md
-        - file: external/Sphinx-TUDelft-theme/README.md
-        - file: external/teachbooks-sphinx-tippy/README.md
+    - file: features/sphinx_extensions.md
+      sections: 
+      - file: external/Download-Link-Replacer/README.md
+      - file: features/custom-launch-button.md      
       - file: features/interactive_element.ipynb
         sections:
         - file: external/Sphinx-Grasple-public/README.md
@@ -64,6 +62,12 @@ parts:
         sections:
         - file: features/widgets.ipynb
         - file: features/exercise_checking.ipynb
+    - file: features/visuals.md
+      sections:
+      - file: external/Sphinx-Image-Inverter/README.md
+      - file: external/JupyterBook-Patches/README.md
+      - file: external/Sphinx-TUDelft-theme/README.md
+      - file: external/teachbooks-sphinx-tippy/README.md
     - file: features/students
       sections:
       - file: external/annotater/README.md
diff --git a/book/basic-features/external-features.md b/book/basic-features/external-features.md
new file mode 100644
index 0000000..f3e5fc2
--- /dev/null
+++ b/book/basic-features/external-features.md
@@ -0,0 +1 @@
+# Externally developed features
\ No newline at end of file
diff --git a/book/basic-features/overview.md b/book/basic-features/overview.md
index e7bdc24..f412e2a 100644
--- a/book/basic-features/overview.md
+++ b/book/basic-features/overview.md
@@ -1,8 +1,8 @@
-# Original Jupyter Book Features
+# Jupyter Book/Sphinx Features
 
 ```{admonition} User types
 :class: tip
 This section is useful for [user type 3-5](../installation-and-setup/user_types.md).
 ```
 
-These pages will provide a list of some common, basic book features which are all available in the original <a href="https://jupyterbook.org/"><img  style="display:inline-block; height:1.5em; width:auto; transform:translate(0, -0.15em)" src="../images/logo-wide.svg" alt="Jupyter book"></a> package. However, this page includes also best-practices.
+These pages will provide a list of some common, basic book features which are all available in the original <a href="https://jupyterbook.org/"><img  style="display:inline-block; height:1.5em; width:auto; transform:translate(0, -0.15em)" src="../images/logo-wide.svg" alt="Jupyter book"></a> package. Additionally, this page includes also best-practices.
diff --git a/book/features/easy-editing.md b/book/features/easy-editing.md
new file mode 100644
index 0000000..e69de29
diff --git a/book/features/overview.md b/book/features/overview.md
index a9a4bc4..bfdc043 100644
--- a/book/features/overview.md
+++ b/book/features/overview.md
@@ -1,12 +1,15 @@
-# TeachBooks Authoring Features
+# Easy editing process
 
 As TeachBooks, we collect a suite of existing open-source software and keep our books up-to-date so you don't have to! Some of the software is developed with our TA's to improve the learning experience of our students and ease the book-development process for our teachers. By deploying these tools from a central location we can prevent common problems before they arise, and fix them quickly when they do occur. As the open-source software landscape changes rapidly, it is essential to keep in contact and share resources amongst ourselves to minimize maintenance and downtime for our book websites and focus on what really matters: teaching!
 
-This chapter provides a list of commonly used book features together with sub-pages that provide additional information on:
-- the purpose
-- how to install them
-- how to use them
-- where to find the source code
+Since the list of TeachBook features is getting quite long, we have grouped them in categories:
+- Easy Editing Process
+- Additional Book Functionalities
+- Book Visuals
+
+Additionally, not all features are built using the same type of sourcecode. For transparency, tags will help differentiate between the different backgrounds of the features.
+
+Finally, the purpose, installation process and usage of each features is elaborated on in the respective sub-sections.
 
 To see examples for these features, go to the [Examples chapter](../examples/overview.md).
 
diff --git a/book/visuals.md b/book/visuals.md
new file mode 100644
index 0000000..ac3e6da
--- /dev/null
+++ b/book/visuals.md
@@ -0,0 +1 @@
+# hi
\ No newline at end of file