Essential System Administration
Æleen Frisch
Linux in a Nutshell
Arnold Robbins & Ellen Siever & Stephen Figgins & Robert Love
Python Microservices Development
Tarek Ziade
The Hacker Playbook 2: Practical Guide To Penetration Testing
Peter Kim
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain