Stephen Yafa

Stephen Yafa is an American screenwriter, author, and speaker. He was noted for his 1968 screenplay, Paxton Quigley's Had the Course, which was also a Writers Guild of America award-winning novel. The film was renamed Three in the Attic. Reviews were not good, and Variety noted that Yafa disowned the picture. Yafa co-wrote the screenplay for the 1971 film, Summertree, with Edward Hume, based on the successful Ron Cowen play.

Yafa is also known for his first non-fiction book, Big Cotton, published by Viking in 2005, and republished as Cotton: The Biography of a Revolutionary Fiber by Penguin in 2006. He was interviewed about the book on Illinois Public Radio. His most recent book is Grain of Truth: Why Eating Wheat Can Improve Your Health.