-Children's books, especially fantasy stories, by contemporaries and friends, including The Hobbit (J.R.R. Tolkien) and The Tale of Peter Rabbit (Beatrix Potter).
-Other literary works by C.S. Lewis, including the six other books in the Chronicles of Narnia series, or his poem "The Planets" (which, it has been argued, contains the main ideas from which the Chronicles sprang).
-Memoir, letters, and essays by C.S. Lewis, including "It All Began with a Picture", which describes the creative origins of The Lion, the Witch and the Wardrobe.
