Edited and with an introduction by Richard Glyn Jones. Writers include John D. MacDonald, Erle Stanley Gardner, Damon Runyon, Ellery Queen, and -- and I quote -- "Sir Arthur Conan Doyle!!!!!!!"
("Don't you mean UN-solved!?" I do not! Different book! Same series; this one came after! I've got my eye out for that one too, so bookmark the Richard Glyn Jones tag if you want to come back for it later.)
This 1987 first U.S. edition is in very nice shape: minor shelfwear to the jacket, but bright and crisp inside -- may never have been opened until now.