Ultimate Puzzle Challenge!: 125+ Brain Puzzles for Kids, Hidden Pictures, Mazes, Sudoku, Word Searches, Logic Puzzles and More, Kids Activity Book for Super Solvers (Highlights Jumbo Books & Pads) Paperback – 5 February 2019

Ultimate Puzzle Challenge!: 125+ Brain Puzzles for Kids, Hidden Pictures, Mazes, Sudoku, Word Searches, Logic Puzzles and More, Kids Activity Book for Super Solvers (Highlights Jumbo Books & Pads)

The Hardest Hidden Pictures Book Ever: The Hardest Hidden Pictures Book Ever (Highlights Hidden Pictures Puzzles) Over 1,500 Hidden Objects to Search and Find, Hardest Look-and-Find Book

Totally Awesome Mazes and Puzzles: Over 200 Brain-bending Challenges