Linux® Command Line and Shell Scripting Bible
Richard Blum
Gray Hat Python
Justin Seitz
grep Pocket Reference
John Bambenek
GPEN GIAC Certified Penetration Tester All-in-One Exam Guide
Raymond Nutting
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain