Computer Systems: A Programmer's Perspective
Randal E. Bryant & David Richard O'Hallaron
The Mythical Man Month: Essays on Software Engineering
Frederick P. Brooks Jr.
The Art of Unit Testing: With Examples in .NET
Roy Osherove
The Timeless Way of Building
Christopher Alexander
Introduction to Algorithms
Thomas H Cormen & Charles E Leiserson & Ronald L Rivest & Clifford Stein