Metasploit
David Kennedy & Jim O'Gorman & Devon Kearns & Mati Aharoni
CCNA 200-301 Official Cert Guide, Volume 2
Wendell Odom
Real-World Bug Hunting
Peter Yaworski
Metasploit Penetration Testing Cookbook
Abhinav Singh
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain