The Art of Writing Efficient Programs
Fedor G. Pikus
Ansible: Up and Running
Bas Meijer & Lorin Hochstein & Rene Moser
Identity-Native Infrastructure Access Management
Ev Kontsevoy & Sakshyam Shah & and Peter Conrad
Metasploit Penetration Testing Cookbook - Third Edition
Daniel Teixeira
Effective Programming
Jeff Atwood