diff --git a/docs/handbook/meta/editing.md b/docs/handbook/meta/editing.md
index 2ce77f8..e7bce05 100644
--- a/docs/handbook/meta/editing.md
+++ b/docs/handbook/meta/editing.md
@@ -11,7 +11,8 @@ Reference for all available Material for MkDocs icons: [:simple-materialformkdoc
 ### Commonly-used icons for links
 :octicons-arrow-right-16: `:octicons-arrow-right-16:` - used for links within the wiki  
 :octicons-tab-external-16: `:octicons-tab-external-16:` - used for links outside the wiki, but within StarCat Systems  
-:octicons-link-external-16: `:octicons-link-external-16:` - used for external links to sites not controlled by StarCat Systems
+:octicons-link-external-16: `:octicons-link-external-16:` - used for external links to sites not controlled by StarCat Systems  
+:material-book-lock: `:material-book-lock:` - used for links to the StarCat Systems internal handbook
 
 ### Coloring icons
 You can add a color to an icon by adding the CSS color after the icon, like this: