Sudoku Puzzle Secrets

It doesn't matter if you've never solved a sudoku puzzle in your life, this guide will tell you everything you need to know, without spending too much brainpower! 

Several methods are explained, including how to solve diabolical puzzles and useful diagrams accompany the descriptions throughout the book. 

The mathematics behind the puzzles is explained and simplified.
 
This multi-touch book also includes a selection of puzzles to test out your newly learned techniques.