Learning the Vi and Vim Editors
Arnold Robbins & Elbert Hannah
Practical Packet Analysis
Chris Sanders
Network Programmability and Automation
Jason Edelman & Scott S. Lowe & Matt Oswalt
Metasploit: The Penetration Tester's Guide
David Kennedy, Jim O'Gorman, Devon Kearns, Mati Aharoni
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