I know Henry Kuttner primarily from his Sword-and-Sorcery excursions: his Elak of Atlantis stories, The Mask of Circe, etc. And of course he was married to C.L. Moore, she of Jirel of Joiry and Northwest Smith fame. Kuttner, sadly, died young. And yet, it turns out, he produced a substantial body of work in the time he had. The Best of Henry Kuttner collects some of it.
Ray Bradbury offers up an exemplary introduction. No surprise there; it’s Ray Bradubury. I won’t quote bits of it here or I’d end up excerpting probably twenty to thirty percent of it. If you normally skip intros and dive right into the first story, try to exercise patience and read this one.