The Dilys Award have been presented every year since 1992 by the Independent Mystery Booksellers Association. It is given to the mystery title of the year which the member booksellers have most enjoyed selling. The Independent Mystery Booksellers Association is an association of retail businesses that are either wholly or substantially devoted to the sale of mystery books. The Dilys award is named after Dilys Winn, who founded the first specialty bookseller of mystery books in the United States.