Beahm, George W. . Bürvenich, Paul. . Peter Lang Verlag, 2001. Chippendale, Lisa A. . 2002, 2003. Fraser, Lindsey. . Arthur A. Levine Books, 2001. . Continuum International Publishing Group, 2001. Lawrence, Daniel. . Rowling, J.K. . Sagebrush, 2001. --. . Sagebrush, 2001. Shapiro, Marc. . St. Martin's Press, 2000. Smith, Sean. . Michael O'Mara Books, 1999. (Analysis of Books 1-4). No location: Wizarding Press, 2003.