CEH Certified Ethical Hacker Study Guide
Kimberly Graves
A Brief History of Time
Stephen Hawking
IT Security Risk Control Management: An Audit Preparation Plan
Raymond Pompon
Cryptography in C and C++
Michael Welschenbach
Advanced Penetration Testing for Highly-Secured Environments
Lee Allen
Web Penetration Testing With Kali Linux
Joseph Muniz & Aamir Lakhani