The Ultimate Logic Grid Puzzle Book for Adults: 100 Fun and Challenging Puzzles (Logic Puzzles – The Ultimate Collection) Unicorn Books
Logic Grid Puzzles, Volume 4: 50 Fiendishly Hard Puzzles (Logic Puzzles for Adults – Platinum Collection) Unicorn Books
Logic Games Workbook: An illustrated Collection of Logic Grid Puzzles for Kids 8-12 (Logic Games for Smart Kids) Unicorn Books
The Ultimate Logic Grid Puzzle Book for Adults, Volume 3: 100 Fun and Extra Challenging Puzzles for Advanced Solvers (Logic Puzzles – The Ultimate Collection) Unicorn Books