A lot of books available for instant download, e.g.:
101 Shortcuts in Math;
Practice that Improves Your Math Skills;
Engineer's Mini Notebook. Formulas, Tables and Basic Circuits;
How to Play Piano Despite Years of Lessons;
Best Jobs for Introverts;
Best Questions to Ask on Your Interview;
English Grammar for the Utterly Confused;
How to Act Like a CEO. 10 Rules for Getting to the Top and Staying There;
How to Interview Like a Top MBA;
Spanish Demystified;
Teaching Your Child to Love Learning;
The A to Z of Correct English. Common Errors in English;
The Complete Book of Intelligence Tests;
The Resume Writers Workbook;
