The Adventures of Ellery Queen

The Adventures of Ellery Queen (1934) -- the premier short-story collection. Individual stories may be good or bad, but taken as a whole this is a superb collection.
Ellery Queen was the pen-name of two cousins, Manfred B. Lee and Frederic Dannay (both also pseudonyms), as well as the pen-name used by the detective himself in his alter-ego as a mystery writer (and that is pseudonymous too, according to J.J.McC., the original 'presenter'). Confusing? Yes. EQ, especially Dannay, was also editor of the best of the detective story magazines (Ellery Queen's Mystery Magazine).