A collection of fifty short pieces, one from each year as indicated by the title. By far the vast majority were science fiction stories, though there was one fantasy and several straight mysteries in there, as well as the odd non-fiction piece. Most of the stories were likeable enough, though there's some that didn't quite stack up to the rest, and a small handful - for example "Nightfall", "The Ugly Little Boy", and the robot stories involving Susan Calvin - that were excellent. I read and reviewed each of the six short books that were collected into this single volume separately, so this is really just a note for my own records. The collection rating is an average of the six individual ratings - volumes two and five both earned four stars from me, and the remainder earned three.