CompTIA Linux+ Study Guide
Richard Blum & Christine Bresnahan
Misery
Stephen King
Hatchet
Gary Paulsen
An Introduction to Mathematical Cryptography
Jill Pipher and Joseph H. Silverman Jeffrey Hoffstein
Mastering Linux - Networking
Paul Cobbaut
Mastering Linux - System Administration
Mastering Linux - Servers
Mastering Linux - Fundamentals