I tend to like Wyndham's novels better than his short fiction, but this was still an enjoyable read. The stand-out story was, I think, "Survival", which is deeply, utterly horrifying. The final image is one of the creepiest I've ever come across in science fiction. Runner-up was "Dumb Martian", which I enjoyed primarily because the nasty, abusive protagonist gets exactly what he deserves. The remaining stories are competent but unmemorable. Still, worth reading if only for "Survival".