Linux

Ultimate Kali Linux Book, Second Edition: Perform advanced penetration testing using Nmap, Metasploit, Aircrack-ng, and Empire

Hackers & Painters: Big Ideas from the Computer Age

Unix And Linux System Administration Handbook: Mastering Networking, Security, Cloud, Performance, And Devops

Kali Linux CLI Boss: Novice To Command Line Maestro

RHCSA Exam Pass: Red Hat Certified System Administrator Study Guide

Operating Systems 101: Novice To Expert: Windows, Linux, Unix, iOS And Android

Burners and Black Markets

Usenet: The Ultimate Guide