diff --git a/book/_toc.yml b/book/_toc.yml
index abecdbf..ffebe94 100644
--- a/book/_toc.yml
+++ b/book/_toc.yml
@@ -17,6 +17,7 @@ parts:
       - file: exercises/005a.md
       - file: exercises/006.md
       - file: exercises/summary
+      - external: https://github.com/TeachBooks/manual/blob/v1.1.1/book/examples/overview.md
     - file: syntax_exercises.md
       sections:
       - file: syntax_exercises/007.md