What is science fiction? Who invented it? What kinds of science fiction stories are there? Are aliens science fiction, or are they real? Then find out about some amazing science fiction inventions, such as robots and matter transmitters. Is time travel possible, or is that just science fiction? Then read The City: a science fiction story set in the future. It's a world of half-people, half robots, where the Control Zone is in charge of everything.

This is one of a series on books on popular non-fiction topics. As with other books in the series, a full colour non-fiction section is followed by a fiction story based upon the topic. The story appears in two formats: one with simple texts for poor or reluctant readers; the facing pages contain an illustrated "speech bubble" version for those who are just starting to read.