LeapFrog LeapReader Junior Book: Disney Sofia the First: A Princess Thing Fly off on a reading adventure as Princess Sofia and a small flying horse discover they can do anything they put their minds Sing along with an original song, touch characters to hear questions about the story and interact with 150+ audio responses Teaches understanding characters, listening comprehension and social skillsAges 1-3 years Works with LeapReader Junior Reading System and Tag Junior Reading System (sold separately) NOTE: LeapReader Junior hardware is compatible with LeapReader Junior and Tag Junior books. LeapReader hardware is compatible with LeapReader books and select tag books