Sudoku Puzzle Book for Adults: Two Puzzles Per Page, Easy, Medium, and Hard with Solutions

Pocket Puzzle Sudoku: Puzzles for Sharp Mind, Smaller Travel Sized (Brain Busters)

Montague Island Mysteries and Other Logic Puzzles

R. Wayne, Schmittberger

Logic Puzzle Book for Adults Volume 1: 50 Easy to Hard Logic Grid Puzzles – The Real Brain Challenge

Feline Puzzles, Press

Detective Logic Puzzles for Adults: 50 Crime-Themed Logic Grid Puzzles – Fun, Easy to Hard Logic Puzzles – Large Brain Teaser Book

Joseph, Morazza