He also wrote and illustrated several books of his own, such as "Before the Dawn of History" (Knight, 1935), "Life Through the Ages" (1946), "Animal Drawing: Anatomy and Action for Artists" (1947), and "Prehistoric Man: The Great Adventure" (1949).
Художник создал свои собственные альбомы, в частности: "Before the Dawn of History" (Knight, 1935), "Life Through the Ages" (1946), "Animal Drawing: Anatomy and Action for Artists" (1947), et "Prehistoric Man: The Great Adventure" (1949).