Serious Cryptography
Jean-Philipee Aumasson
Attacking Network Protocols
James Forshaw
Bash Cookbook
Carl Albing & JP Vossen
Penetration Testing: A Hands-On Introduction to Hacking
Gorgia Weidman
Web Security for Developers
Malcolm McDonald
The Linux Command Line, 2nd Edition
William Shotts
The Hardware Hacker
Andrew Bunnie Huang
Black Hat Go
Tom Steele & Chris Patten & Dan Kottmann