Linux in a Nutshell
Arnold Robbins & Ellen Siever & Stephen Figgins & Robert Love
Wireshark for Security Professionals
Jessey Bullock & Jeff T. Parker
Go Cookbook
Aaron Torres
grep Pocket Reference
John Bambenek
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain