Whodunit?! The Ultimate Detective Challenge – Deduction Logic Puzzles for Adults and Seniors: 50 Easy to Medium Difficulty Criminal-Themed Logic Grid Puzzles Feline Puzzles, Press
101 Easy Logic Grid Puzzles for Absolute Beginners: The Ultimate Adults Brain Boosting Puzzle Book – Learn To Solve Deduction Cross-Reference Puzzles With Detailed Explanations Feline Puzzles, Press
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