Gray Hat Hacking the Ethical Hacker's Handbook, Fourth Edition
Daniel Regalado & Shon Harris & Allen Harper & Chris Eagle & Jonathan Ness & Branko Spasojevic & Ryan Linn & Stephen Sims
Scaling PHP
Steve Corona
GNS3 Network Simulation Guide
Rednectar Chris Welsh
The Hacker's Diet
John Walker
The Selfish Gene: 30th Anniversary Edition
Richard Dawkins