The Innocent Man: Murder and Injustice in a Small Town is a 2006 true crime book by John Grisham, his only nonfiction title as of 2020. The book tells the story of Ronald 'Ron' Keith Williamson of Ada, Oklahoma, a former minor league baseball player who was wrongly convicted in 1988 of the rape and murder of Debra Sue Carter in Ada and was sentenced to death. After serving 11 years on death row, he was exonerated by DNA evidence and other material introduced by the Innocence Project and was released in 1999.

John Ray Grisham Jr. is an American novelist, lawyer, and former member of the Mississippi House of Representatives, known for his best-selling legal thrillers. According to the American Academy of Achievement, Grisham has written 37 consecutive number-one fiction bestsellers, and his books have sold 300 million copies worldwide. Along with Tom Clancy and J. K. Rowling, Grisham is one of only three anglophone authors to have sold two million copies on the first printing.