Regular Expression Pocket Reference
Tony Stubblebine
Practical Reverse Engineering
Bruce Dang & Alexandre Gazet & Elias Bachaalany
Mastering Kubernetes
Gigi Sayfan
Introducing ZFS on Linux
Damian Wojsław
Distributed Systems Principles and Paradigms
Andrew S. Tanenbaum & Maarten van Steen
UNIX and Linux System Administration Handbook
Evi Nemeth & Garth Snyder & Trent R. Hein & Ben Whaley
C Programming Language
Brian W. Kernighan & Dennis Ritchie