This is the first novel by Adam Roberts I have read, although I have enjoyed a couple of his short stories. Yellow Blue Tibia is a witty, intelligent piece of science fiction and the most enjoyable book I've read in a while. It is written as a memoir of a Russian science fiction writer who emerges as a classic unreliable narrator (due to addiction, injury and the interference of others), but also provides a wonderfully acerbic wit. The tale itself is a sort of cold-war noir (as our protagonist never seems exactly to know what he is being unwillingly dragged into) and gallops along at a fine pace. It has action, suspense, laugh-out-loud humour, a love story and perfectly pitched dialogue which draws the reader into an imagined Russia. Yellow Blue Tibia is a fantastic exploration of the UFO phenomenon, the social engineering of the 20th century and our collective utopian dreams wrapped up in 21st century quantum theory. Highly recommended.