Logic and reasoning are essential for success in a wide variety of subjects--from science to language arts--as well as life outside the classroom. Readers develop these skills through the completion of a series of exciting and age-appropriate activities, including games and puzzles. Colorful illustrations accompany each activity, and a clear answer key allows readers to check their work as they go. In addition, each set of activities is marked by a specific color that matches a skill level so readers can choose the best fit for them. This allows them to have fun as they train their brain.