Kids love secret codes, and this book offers dozens of intriguing challenges related to U.S. history, geography, pop culture, and a host of other subjects. Suitable for ages 8-12.

Tony J. Tallarico, son of the veteran illustrator and author Anthony Tallarico, has been creating word puzzles and activity books for nearly 30 years. His Dover titles include Find and Color Activity Book, Spot-the-Differences Across the USA, Nature Trivia Maze, Eco-Logical Brain Games, Presidents Activity Book, and English-Spanish Word Search.