R.L. Stine appears at the 2012 Library of Congress National Book Festival.Speaker Biography: R.L. Stine has sold more than 350 million books, making him one of the best-selling children's authors in history. When he was 9, Stine found an old typewriter in the attic. That discovery changed his life. He carried it down to his room and started typing stories and little joke books. His Goosebumps series began in 1992. The series quickly became a hit around the world and has been translated into 32 languages. Stine's new book is "Goosebumps Most Wanted #1: Planet of the Lawn Gnomes."