Scaling PHP
Steve Corona
Linux Command Line and Shell Scripting Bible
Christine Bresnahan & Richard Blum
The Design and Implementation of the FreeBSD Operating System
Marshall Kirk McKusick & George V. Neville-Neil & Robert N. M. Watson
Practical LPIC-3 300: Prepare for the Highest Level Professional ...
Antonio Vazquez
Handbook of Inca Mythology
Paul Richard Steele & Catherine Jean Allen