A child, the act of reading can be a very interactive process. There are many books published that encourage the young reader to interact with the printed book and to experience and explore the narrative of media in a deeper way. The types of interaction that these books encourage from the reader are greatly varied; from books that encourage the reader to develop their own storyline through to books where the physical interaction with the book is deeply involving. This investigation audited three publicly funded libraries, a publicly funded kindergarten and a publicly funded intermediate school library as well as two private collections to assist with the development of a system for categorising levels of interactivity in children's printed books.