394 books • 40 series
Book of Big Sudoku - Samurai Sudoku, Cross Sudoku 200 Hard Puzzles Book 3 (Book of Big Sudoku, #3)
Book of Big Sudoku - Samurai Sudoku, Cross Sudoku 200 Easy Puzzles Book 1 (Book of Big Sudoku, #1)
Minesweeper Puzzles - 200 Hard to Very Hard Puzzles 10x10 Book 4 (Minesweeper Puzzles, #4)
Minesweeper Puzzles - 200 Easy to Normal Puzzles 11x11 Book 5 (Minesweeper Puzzles, #5)