diff --git a/README.md b/README.md
index 9927e7a..fab4e6d 100644
--- a/README.md
+++ b/README.md
@@ -55,6 +55,10 @@ A collection of awesome penetration testing resources, tools, confs, magazines,
 
 ## Books
 
+### Windows
+
+* [Windows Internals by Mark Russinovich, David Solomon, Alex Ionescu](http://technet.microsoft.com/en-us/sysinternals/bb963901.aspx)
+
 ### Social Engineering
 
 * [The Art of Deception by Kevin D. Mitnick, William L. Simon, 2002](http://wiley.com/WileyCDA/WileyTitle/productCd-0471237124.html)
@@ -64,6 +68,7 @@ A collection of awesome penetration testing resources, tools, confs, magazines,
 * [Social Engineering: The Art of Human Hacking by Christopher Hadnagy, 2010](http://wiley.com/WileyCDA/WileyTitle/productCd-0470639539.html)
 * [Unmasking the Social Engineer: The Human Element of Security by Christopher Hadnagy, 2014](http://wiley.com/WileyCDA/WileyTitle/productCd-1118608577.html)
 
+
 ## Magazines
 
 * [2600: The Hacker Quarterly](http://www.2600.com/Magazine/DigitalEditions) - An American publication about technology and computer "underground".