David Sheff

David Sheff is the author of “Clean: Overcoming Addiction and Ending America’s Greatest Tragedy,” the follow-up to his New York Times No. 1 bestseller, “Beautiful Boy: A Father’s Journey Through His Son’s Addiction.” “Beautiful Boy” was made into a 2018 movie by the same name, starring Steve Carell and Timothée Chalamet.

“Clean” is the result of the many years Sheff spent investigating the disease of addiction and America’s drug problem, which he believes is the greatest public health challenge of our time.