Using and Administering Linux: Volume 1
David Both
The Linux Command Line
William E. Shotts, Jr.
Professional Linux Kernel Architecture
Wolfgang Mauerer
Hands-On Software Engineering with Python
Brian Allbee
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain