On each book page, see Olivia dressing up, singing songs, building sand castles, napping (maybe), dancing, painting on walls and - going to sleep at last. Just try to keep up, because Olivia is very good at wearing people out. Throughout the story play learning activities that help build reading comprehension skills and foster art appreciation. For ages 4 years and over. Tag books work with the Tag Reader (sold separately) to bring books to life like never before. As children touch the Tag Reader to the pages of the specially printed story book a small camera in the tip reads the pages, enabling children to hear their favourite characters speak, listen to pictures sing and hear the words on the page spoken aloud.