diff --git a/book/_toc.yml b/book/_toc.yml
index e04ffc8..28e8a80 100644
--- a/book/_toc.yml
+++ b/book/_toc.yml
@@ -98,7 +98,6 @@ parts:
       sections:
       - file: external/annotater/README.md
       - file: basic-features/hypothesis.md
-    - file: features/teachbooks
 
   - caption: Examples
     chapters:
@@ -127,4 +126,4 @@ parts:
     - file: references.md
     - file: credits
     - file: changelog
-    - file: contact
\ No newline at end of file
+    - file: contact