Logic Grid Puzzles, Volume 1: From Easy to Fiendishly Hard (Logic Puzzles for Adults – Platinum Collection) Unicorn Books
The Ultimate Logic Grid Puzzle Book for Adults, Volume 2: Another 100 Fun and Challenging Puzzles (Logic Puzzles – The Ultimate Collection) Unicorn Books
The Galactic Logic Puzzle Extravaganza for Adults: Logic Grids, Brain Teasers, and Other Mind-Bending Challenges Unicorn Books
Logic Grid Puzzles & Other Games: A Fun and Challenging Logic Workbook for Kids 8-12 (Logic Games for Smart Kids) Unicorn Books