Books: Crow (Reaktion Books, 2015)
,
City of Ravens: The Extraordinary History of London, its Tower, and its Famous Ravens (Overlook Press, 2013)
,
The Mythical Zoo: Animals in Myth, Legend, and Literature (Overlook Press, 2013)
,
Imaginary Animals: The Monstrous, the Wondrous, and the Human (Reaktion Books, 2013)
,
Stealing Fire: Memoir of a Boyhood in the Shadow of Atomic Espionage (Decalogue Books, 2013)
,
Animals in the Third Reich: Pets, Scapegoats and the Holocaust (Continuum, 2001)
,
The Serpent and the Swan: Animal Brides in Literature and Folklore (The University of Tennessee Press, 1998)