diff --git a/exercises/20_threads/README.md b/exercises/20_threads/README.md
index dbe6664..0b32fb1 100644
--- a/exercises/20_threads/README.md
+++ b/exercises/20_threads/README.md
@@ -7,3 +7,4 @@ Within your program, you can also have independent parts that run simultaneously
 
 - [Dining Philosophers example](https://doc.rust-lang.org/1.4.0/book/dining-philosophers.html)
 - [Using Threads to Run Code Simultaneously](https://doc.rust-lang.org/book/ch16-01-threads.html)
+- [Using Message Passing to Transfer Data Between Threads](https://doc.rust-lang.org/book/ch16-02-message-passing.html)