Prototypicality Among Metaphors: On the Relative Frequency of Personification and Spatial Metaphors in Literature Written for Children Versus Adults

http://www.tandfonline.com/doi/abs/10.1207/s15327868ms0102_1

Toys in the Attic 2009 review
https://film.avclub.com/toys-in-the-attic-1798174083