pIt's smart. It's stylish. It's fun And with its unique design, iWill Shortz Presents The Little Black Book of Sudoku iis bound to be the must-have collection for any puzzle fan. Edited by crossword great Will Shortz, this beautiful book offers 400 easy-to-hard puzzles in a convenient portable size, perfect for carrying in your purse, briefcase, or backpack. Features br 400 sudoku puzzles, arranged according to difficultybr Sleek design with a covered spiral binding makes it easy to solve puzzlesbr Durable hardcover protects the book as it travels with you wherever you go The perfect gift for any holidaybr Edited by Will Shortz.p