diff --git a/Threads.md b/Threads.md
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--- a/Threads.md
+++ b/Threads.md
@@ -33,3 +33,4 @@ We provide additional firmware variants for the Pyboard that enables the `_threa
 ### Resources
 
 * [Threads in MicroPython](https://www.youtube.com/watch?v=aDXgX0rGVDY): Damien's talk that introduced the feature
+* [Threading](https://github.com/peterhinch/micropython-async/blob/master/v3/docs/THREADING.md): A doc which aims to explain the different forms of MicroPython concurrency.