David Sheff is an American author of the books Clean: Overcoming Addiction and Ending America's Greatest Tragedy and Beautiful Boy: A Father's Journey Through His Son's Addiction. In 2009, Sheff was included in Time Magazine's Time 100, The World's Most Influential People, and Beautiful Boy was named the best nonfiction book of the year by Entertainment Weekly. The book also won the Barnes & Noble "Discover Great New Writers Award" for nonfiction and was an Amazon Best Book of the Year (2008). He was awarded the 2013 College of Problems on Drug Dependence (CPDD) Media Award, and 2017 American Society of Addiction Medicine (ASAM) Media Award.