2007
- Mathematics , Number Theory
The Book of Numbers: From Zero to Infinity, an Entertaining List of Every Number That Counts
Free Download 
Computers , Programming: Programming LanguagesThe Book of Qt 4: The Art of Building Qt Applications
Free Download
Technique , Aerospace EquipmentThe Boss from Outer Space and Other Aliens at Work: A Down-to-Earth Guide..
Free Download
Mathematics , Computational MathematicsThe Calculus of Computation: Decision Procedures with Applications to Verification
Free Download
