Being able to think creatively and logically is a skill that needs developing! This fun and challenging series will help your children learn to figure things out and stretch their brain power. These books are unique in that they have many exercises in visual perception, such as showing a drawing of a box that is unfolded and having you "fold" it back together with your eyes only. Studies have proven that these books raise national test scores significantly in analysis, vocabulary, reading and mathematical reasoning skills. Paperback, 300+ reproducible pages and answers included.