The Mammoth Book of Brain Workouts (Mammoth Books)
Product Type: Specialty Product
List price: $11.12 | Save 41%
This collection of over 400 puzzles has been specially formulated to challenge, stimulate and train all the key parts of your brain. It includes a month's supply of workouts, with each daily workout balanced between problem solving, creativity, concentration and memory. The book includes the solutions to the puzzles.