diff --git a/README.md b/README.md
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+++ b/README.md
@@ -20,7 +20,7 @@ If you're a Go developer looking to improve your skills, this book is for you. W
 
 ### Where to Buy?
 
-100 Go Mistakes and How to Avoid Them (English edition):
+100 Go Mistakes and How to Avoid Them (English edition: paper, digital, or audiobook):
 * [Manning.com](https://www.manning.com/books/100-go-mistakes-and-how-to-avoid-them)
 * Amazon: [.com](https://www.amazon.com/dp/1617299596), [.co.uk](https://www.amazon.co.uk/dp/B0BBSNJR6B), [.de](https://www.amazon.de/dp/B0BBHQD8BQ), [.fr](https://www.amazon.fr/100-Mistakes-How-Avoid-Them/dp/1617299596), [.in](https://www.amazon.in/dp/B0BBHQD8BQ), [.co.jp](https://www.amazon.co.jp/dp/B0BBHQD8BQ), [.es](https://www.amazon.es/dp/B0BBHQD8BQ), [.it](https://www.amazon.it/dp/B0BBHQD8BQ), [.com.br](https://www.amazon.com.br/dp/B0BBHQD8BQ)