Here are important works related to reading, teaching, and reconsidering comics and graphic novels; I will add as I find new sources.
Campbell, J. (1949). The hero with a thousand faces. New York: MJF Books.
Cope, B., & Kalantzis, M. (2000). Multiliteracies: Literacy learning and the design of social forces. New York: Routledge.
Eisner, W. (1985). Comics and sequential art. Tamarac, FL: Poorhouse Press.
Eisner, W. (1996). Graphic storytelling. Tamarac, FL: Poorhouse Press.
Miller, F., & Mazzucchelli, D. (2007). Batman: Year one. New York: DC Comics.
McCloud, S. (2006). Making comics: Storytelling secrets of comics, manga and graphic novels. New York: Harper Paperback.
McCloud, S. (2000). Reinventing comics: How imagination and technology are revolutionizing an art form. New York: Harper Paperback.
McCloud, S. (1994). Understanding comics: The invisible art. New York: Harper Paperback.
Moore, A., & Lloyd, D. (1989). V for vendetta. New York: Vertigo.
Moore, A., & Gibbons, D. (1986, 1987). Watchmen. New York: DC Comics.
Rhoades, S. (2008). Comic books: How the industry works. New York: Peter Lang USA.
Thomas, P. L. (2009). Comics. In Boy culture: An encyclopedia. Eds. S. Steinberg & M. Kehler. Westport, CT: Greenwood Press.
White, M. D. (2009). Watchmen and philosophy: A Rorschach test. Hoboken, NJ: Wiley.
White, M. D., & Arp, R. (2008). Batman and philosophy: Dark knight of the soul. Hoboken, NJ: Wiley.