Computer Organization and Architecture: Designing for Performance
William Stallings
UNIX and Linux System Administration Handbook 4th edition
Evi Nemeth & Garth Snyder & Trent R. Hein & Ben Whaley
Unix and Linux System Administration Handbook 5th Edition
Evi Nemeth & Garth Snyder & Ben Whaley & Trent Hein
Ruby Under a Microscope: An Illustrated Guide to Ruby Internals
Pat Shaughnessy
The History of the Incas
Pedro Sarmiento de Gamboa & Brian S. Bauer & Vania Smith