Pocket Sudoku (Paperback)

From the Publisher: Cuckoo for Sudoku? Take these palm-size puzzle books wherever you go, and you’ll never suffer through a dull meeting, class, or morning commute again! Each book includes brief instructions and an answer key. 3 pads, 64 sheets each, 126 puzzles per pad (42 easy, 42 medium, and 42 hard), shrink-wrapped side-by-side, 4 5⁄8 x 8 1⁄4 inches