From c2300d3ac800fde4129141ec9b2320d59339b4fe Mon Sep 17 00:00:00 2001
From: Dhairya Ostwal <50984984+dhairyaostwal@users.noreply.github.com>
Date: Sat, 26 Dec 2020 10:03:50 +0530
Subject: [PATCH] Update books.md

---
 books.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/books.md b/books.md
index 4c920e6..c30532e 100644
--- a/books.md
+++ b/books.md
@@ -1 +1,2 @@
-The Shellcoder's Handbook: Discovering and Exploiting Security Holes, 2nd Edition
+1. The Shellcoder's Handbook: Discovering and Exploiting Security Holes, 2nd Edition
+2. [Operating Systems Principles by Galvin,Silberschatz](http://www.uobabylon.edu.iq/download/M.S%202013-2014/Operating_System_Concepts,_8th_Edition%5BA4%5D.pdf)