Bob Books Set 1 captures the hearts of kids just starting to read. They are fun and build confidence right away. Using only the letters M, A, T and S, kids can read their first book. New letters are added gradually, until you get to zip, zap, zam. By book 12, kids have read books with all letters of the alphabet (except Q). Kids love the stories and funny pictures, and can't wait to read them to everybody they know. Set includes 12 books. Each book has 12 pages and is made up of 3-letter words with consistent sounds. Set measures: 5" x 0.4" x 5". Ages 4 and up.