Which writer, Dan Simmons or Madeleine L'Engle, is known for young adult fiction, including "A Wrinkle in Time"?
Dan Simmons Dan Simmons (born April 4, 1948) is an American science fiction and horror writer. He is the author of the Hyperion Cantos and the Ilium/Olympos cycles, among other works which span the science fiction, horror, and fantasy genres, sometimes within a single novel. A typical example of Simmons' intermingling of genres is "Song of Kali" (1985), winner of World Fantasy Award. He also writes mysteries and thrillers, some of which feature the continuing character Joe Kurtz.
Dan Brown Daniel Gerhard "Dan" Brown (born June 22, 1964) is an American author of thriller fiction, most notably the novels "Angels & Demons" (2000), "The Da Vinci Code" (2003), and "Inferno" (2013). Brown's novels are treasure hunts set in a 24-hour period, and feature the recurring themes of cryptography, keys, symbols, codes, and conspiracy theories. His books have been translated into 52 languages, and as of 2012, sold over 200 million copies. Three of them, "Angels & Demons" (2000), "The Da Vinci Code" (2003), and "Inferno" (2013), have been adapted into films.