CCNA Certification Practice Tests
Jon Buhagiar
Kali Linux - An Ethical Hacker's Cookbook
Himanshu Sharma
Linux® Essentials
Richard Blum
Cryptography Engineering
Tadayoshi Kohno & Bruce Schneier & Niels Ferguson
RTFM - Red Team Field Manual
Ben Clark
Blue Team Field Manual
Alan White
Python for Informatics
Charles Severance