Donald Edwin Westlake was an American writer with more than one hundred novels and non-fiction books to his credit. He specialized in crime fiction, especially comic capers, with an occasional foray into science fiction and other genres. Westlake created two professional criminal characters who each starred in a long-running series: the relentless, hardboiled Parker, and John Dortmunder, who featured in a more humorous series.

Joseph Nicholas Gores was an American mystery writer. He was known best for his novels and short stories set in San Francisco and featuring the fictional "Dan Kearney and Associates" private investigation firm specializing in repossessing cars, a thinly veiled escalation of his own experiences as a confidential sleuth and repo man. Gores was also recognized for his novels Hammett, Spade & Archer and his Edgar Award-winning or -nominated works, such as A Time of Predators, 32 Cadillacs and Come Morning.