asimov's short stories are outstanding, will really make you think about some stuff for forever. I'm still left thinking about some of the twists years later. the Foundation trilogy is so good at historical materialism you'd be shocked a lib wrote it. I need to read the gods themselves as an adult rather than a super horny teenager to tell you if it was any good or not. Like others have said, sometimes his women are kinda weak, but show up pretty frequently compared to some science fiction writers and actually do things in the stories. he also improved on this as he matured.