Brain Workout: 500 Math and Logic Puzzles in 10 Types for Adults, Seniors & Thinkers With Rules, Examples and Solutions: Test Your Math Skills Using Mathrax, Calcudoku, Kakuro, Futoshiki and More Feline Puzzles, Press
Criminal Cases of Zebra Griddle the Detective – Logic Puzzles for Teens and Adults: 39 Murder Mystery Logic Grid Puzzles with Full Solutions Feline Puzzles, Goodwin, Perry, Press
Logic Puzzle Book for Adults Volume 1: 50 Easy to Hard Logic Grid Puzzles – The Real Brain Challenge Feline Puzzles, Press
Knights and Knaves Logic Puzzles for Adults and Teens: 100 Deduction Puzzles To Test Your Reasoning Skills Feline Puzzles, Press