The Ultimate Activity Book for Smart Boys: Tricky Brain Teasers, Mind Games and Logic Puzzle Activities for Boys 8-12 (Activity Books for Kids) IQ Street
Mermaids and Unicorns Activity book Logic games, Tests, Quizzes, Sudoku, Connect the dots, Puzzles, Mazes: Many Challenges and pastimes for children aged 4 to 6 years Cappelli, Valerio
Logic Puzzle Book for Kids and Teens: 50 Easy to Medium Difficulty Logic Grid Puzzles: Designed for Young Readers With Smaller Grids and Detailed Solutions Feline Puzzles, Press