Davidson, Joy, and Wilson, Leah, eds. (2007). The Psychology of Joss Whedon: An Unauthorized Exploration of Buffy, Angel, and Firefly. BenBella Books. ISBN1-933771-25-9.
Koontz, K. Dale (2008). Faith and Choice in the Works of Joss Whedon. McFarland. ISBN978-0-7864-3476-3.
Comeford, AmiJo and Burnett, Tamy (2010). The Literary Angel: Essays on Influences and Traditions Reflected in the Joss Whedon Series. McFarland. ISBN978-0-7864-4661-2.
Waggoner, Erin B. (2010). Sexual Rhetoric in the Works of Joss Whedon: New Essays. McFarland. ISBN978-0-7864-4750-3.
Espenson, Jane and Wilson, Leah, eds. (2010). Inside Joss' Dollhouse: Completely Unauthorized, from Alpha to Rossum. Smart Pop. ISBN978-1935251989.