* 1000 Sudoku Puzzles* 4 levels of difficulty (Easy to Hard)* For beginners and experienced Sudoku puzzlers* 300 Easy, 300 Medium, 200 Hard, 200 Challenger.* Instructions and solving techniques at all levels.* In bigger print and on bright white paper.* An ideal for giftsVisit: www.brainwork-outs.com - For more fun puzzle books.