"'Unmissable for all fans of Doctor Who... Good science fiction and cutting-edge science go hand in hand. Here's how Who does it.' Stephen Baxter 'An entertaining look at the scientific fiction behind Doctor Who - and some of the not-so-fictitious science as well. Who fans old and new will delight in this treasure trove of ideas presented by a writer who is clearly a fan as well as being a scientist.' John Gribbin 'Snappy, lively, journalistic, and drenched in Doctor Who' Nature 'More effective than a dozen earnest and worthy schemes to promote the public understanding of science.' New Scientist"