diff --git a/index.md b/index.md
index 1a8854e0..5a61265a 100644
--- a/index.md
+++ b/index.md
@@ -4,6 +4,9 @@
 
 Have questions or feedback about the book? My email is [cwoodruff@live.com](mailto:cwoodruff@live.com).
 
+For the source code for the workshop, visit the book's GitHub repo. [book-network-programming-csharp
+](https://github.com/cwoodruff/book-network-programming-csharp)
+
 | Chapter   | Title                                                           | Published                   |
 |-----------|-----------------------------------------------------------------|-----------------------------|
 | 1         | [Overview of Network Programming](./Chapter01/chapter01.md)     | ✔️      |