FreeSoftwareBooks.com
the name says it all

Home Page  |   Languages   | Java/J2EE    |  Microsoft    |   Unix/Linux    |   Computer Science    |   Databases    |  Web   |   Networking  

Computer and Graphics 
Graphics Programming Black Book (M. Abrash) [Mirror] Architecture for Combinator Graph Reduction
Simulating Humans: Computer Graphics, Animation, and Control (N.I. Badler)
Compute!'s First Book of Atari Graphics Computer Graphics Primer
Atari Graphics & Arcade Game Design Encyclopedia of Graphics File Formats
OpenGL Programming Guide [Mirror] OpenGL Reference Manual [1.0]
Java GUI Books Unix/Linux GUI Books
C++ GUI Programming with Qt3 (Jasmin Blanchette/Mark Summerfield)
Cross-Platform GUI Programming with wxWidgets (Julian Smart/Kevin Hock)
Vector Math for 3D Computer Graphics, 3rd Edition  
Graph Theory, 3rd Edition (R. Diestel) Graph Theory with Applications (J. Bondy, U. Murty)