Mastering Linux Security and Hardening: Protect your Linux systems from in...

Practical Linux Security Cookbook: Secure your Linux environment from mode...

The Secret Language of Dogs: How to Communicate Effectively with Your Dog, Dunph

Make Every Minute Count: How to Manage Your Time Effectively (Better management

The Game Artists Guide to Maya: Getting Linux, Apache, MySQL, and PHP Working To

Linux Pocket Guide (Pocket Guide: Essential Commands), Daniel J. Barrett, Used;

Linux in a Nutshell (In a Nutshell (OReilly)), Ellen Siever & Stephen Spainhour

How to Communicate Effectively, Bert Decker, Used; Good Book