This book is a lot of fun to play. It lists that it's for ages 8 to adult. My child is 11, loves puzzles and just adores this book! We ended up with a second copy!
From the back of the book:
The fun game of logical deduction
60 challenges to play
Handy book format -- Great for travel
Foldout magnetic game grid and 9 magnetic tokens
THE CHALLENGE: It's fun! GridWorks is a pattern-matching puzzle game, played by one person or a group working together. Sixty challenges progress from Warm-up to Beginner, Intermediate, Advanced, and Expert.
THE OBJECT: It's easy! Place nine colored tokens correctly on the game grid, following the clues provided with each challenge.
THE CLUES: It's tricky! Clues are presented as symbols located on grid segments. Each clue offers a partial image of the final solution. You'll have to compare and combine information from different clues to reach the solution.