diff --git a/free-programming-books.md b/free-programming-books.md
index 5f0e469efe56b3862fc58c4360a6550749851be4..8a231b4ae6239c190efc42a87f3aa9504def405c 100644
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -449,6 +449,7 @@
 * [The Linux Kernel Module Programming Guide](http://tldp.org/LDP/lkmpg/2.6/html/)
 * [Secure Programming for Linux and Unix](http://www.dwheeler.com/secure-programs/Secure-Programs-HOWTO.html)
 * [Linux from Scratch](http://www.linuxfromscratch.org/lfs/view/stable/)
+* [What Every Programmer Should Know About Memory](http://www.akkadia.org/drepper/cpumemory.pdf)
 
 
 ###Lisp