Unix Power Tools
Shelley Powers, Jerry Peek, Tim O'Reilly & Mike Loukides
CCNA Certification Practice Tests
Jon Buhagiar
Red Hat Enterprise Linux 6 Administration
Sander van Vugt
Hands-on Booting
Yogesh Babar
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain