A collection of six short pieces, ranging from short story to novella. The best one here is, I think, "Sally", about a rest home for artificially intelligent cars - there's a sort of commentary on gender and exploitation in it that's unusually sharp for Asimov but really quite effective. Of the others, I admire the thought behind "The Martian Way" even if I've never managed to emotionally connect with it. The two stories I do connect to in that way, "Profession" and "Franchise", are examples of the type of science fiction thought experiments that don't quite work for me, in that I don't find the society built up around the central idea at all convincing. Yet I still enjoyed reading them, mostly because I felt for the characters, who were genuinely sympathetic and certainly more believable than their respective plots.