Oh Shit, Git!
Julia Evans
Wizard Zines (1)
Head First Object-Oriented Analysis and Design
Brett McLaughlin & Gary Pollice & David West
Land of Lisp: Learn to Program in Lisp, One Game at a Time!
Conrad Barski
R Graphics Cookbook
Winston Chang
Regular Expressions Cookbook
Jan Goyvaerts & Steven Levithan
Advanced Rails
Brad Ediger