diff --git a/books/free-programming-books-langs.md b/books/free-programming-books-langs.md
index 61c8bcf50..9ebdfa014 100644
--- a/books/free-programming-books-langs.md
+++ b/books/free-programming-books-langs.md
@@ -348,7 +348,6 @@ Books on general-purpose programming that don't focus on a specific language are
 * [x86-64 Assembly Language Programming with Ubuntu](http://www.egr.unlv.edu/~ed/x86.html) - Ed Jorgensen (PDF)
 * [x86 Assembly](https://en.wikibooks.org/wiki/X86_Assembly) - Wikibooks
 * [x86 Disassembly](https://en.wikibooks.org/wiki/X86_Disassembly) - Wikibooks
-* [Zen of Assembly Language: Volume I, Knowledge (1990)](http://www.jagregory.com/abrash-zen-of-asm/) - Michael Abrash
 
 
 #### Non-X86