This article presents an interview with Terry Pratchett, one of the world's most beloved storytellers. And with sales of more than 65 million books in 37 languages, he's indisputably one of the most successful. The English novelist's many honors include a knighthood from Queen Elizabeth, more than a half dozen honorary doctorates, and the 2008 "Los Angeles Times" Book Prize and 2009 "Boston Globe-Horn Book" Award for "Nation" (2008), which also nabbed a Printz Honor. Now, Pratchett can also add the Margaret A. Edwards Award to his remarkable resume. The Edwards, a lifetime achievement award that recognizes significant contributions to teen literature, is overseen by the Young Adult Library Services Association and sponsored by "School Library Journal." Although Pratchett first appeared in print when he was 13 (his short story "The Hades Business" was published in the school magazine), his literary career kicked into high gear with the 1983 release of "The Colour of Magic," the first installment of "Discworld," his wildly popular fantasy series. Featuring a flat world that's balanced on the backs of four elephants perched on the back of an enormous turtle who's sailing through space, "Discworld" quickly established Pratchett not only as a master of fantasy, but also as a first-class satirist. To date, he's written 38 "Discworld" novels, including five for young adults--"The Amazing Maurice and His Educated Rodents" (2001), winner of the 2001 Carnegie Medal; "The Wee Free Men" (2003); "A Hat Full of Sky" (2004); "Wintersmith" (2006); and "I Shall Wear Midnight" (2010). In addition to the first three of those titles, the Edwards committee also praised six more "Discworld" books: (1) "The Colour of Magic"; (2) "Equal Rites" (1987); (3) "Mort" (1987); (4) "Guards! Guards!" (1989); (5) "Small Gods" (1994); and (6) "Going Postal" (2004). In this interview, Pratchett talks about his remarkable career, the "Discworld" series, and his battle with Alzheimer's.