grep Pocket Reference
John Bambenek
Digital Forensics and Incident Response
Gerard Johansen
Mastering Linux Security and Hardening
Donald Tevault
Technical Writing for Business People
Carrie Marshall
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain