Let the chaos and calamity of daily life melt away into the ordered numbers of these Serene Sudoku puzzles. Part of the Overworked & Underpuzzled series, this selection has over 200 puzzles to help give you a break from a busy day. With different difficulty levels, these puzzles are perfect for beginners and experts alike.(This book may contain a sharpie mark on the top or bottom edge and may show mild signs of shelfwear.)