Hardcovers

Our hardcover sudoku series gives each difficulty level a book of its own, and every sudoku in it comes with small calcudoku warm-ups on the same page. The word search hardcover works through three levels in order, and each of its puzzles takes its theme from everyday life in years gone by. In all of them every puzzle has a page to itself, and the solutions are at the back. For our coloring books and our paperback sudoku, see our paperbacks. Each book below opens its own page, with a link to buy it on Amazon.