Lawrence Block is an American crime writer best known for two long-running New York-set series about the recovering alcoholic P.I. Matthew Scudder and the gentleman burglar Bernie Rhodenbarr. Block was named a Grand Master by the Mystery Writers of America in 1994. Block has written in the genres of crime, mystery, and suspense fiction for more than half a century, releasing over 100 books.

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.