Linux Pocket Guide, 3E
Daniel J. Barrett
Black Hat Python
Justin Seitz
Metasploit for Beginners
Sagar Rahalkar
Mastering Python Networking
Eric Chou
Using and Administering Linux: Volume 1
David Both
Hands-on Booting
Yogesh Babar
Beginning Modern Unix
Manish Jain
Accelerating Development Velocity Using Docker
Kinnary Jangla