Expanding upon the BOB Books step-by-step philosophy, these sets offer children and their parents a simple and satisfying structure for getting ready to read. The Alphabet set introduces uppercase and lowercase letters and initial letter sounds, helping children match sounds to letters, letters to words, and words to a story. The Pre-Reading Skills set uses humorous read-aloud stories to introduce spatial, relational, and sequencing concepts that kids need to start reading on their own.