This two-book set with included "Ace"—the Talking, Teaching Dog™ pen provides children with 100 lessons on a variety of beginning reading skills from letter recognition to reading readiness activities. Fifteen of the 100 lessons are challenge activities that prepare children for skills for pre-kindergarten. Psst...They're Learning! • Playful, interactive learning • Confidence-building feedback • Provides ample practice time • Encourages independent learning Cut to the Chase • 85 Pre-kindergarten-level lessons in these areas: Letter Recognition, Reading Readiness, Phonics, Sight Words, Punctuation & Grammar, PLUS 15 challenge reading lessons for advanced learners • The set includes two sturdy spiral-bound books and "Ace"—the Talking, Teaching Dog interactive, electronic Hot Dots pen • Ace requires 2 AAA batteries (not included)