CCNA 200-301 Official Cert Guide, Volume 2
Wendell Odom
Math Adventures with Python
Peter Farrell
Beginning Modern Unix
Manish Jain
The Everything Economics Book
David A Mayer
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain