Pebble in the Sky is a science fiction novel by Isaac Asimov, published in 1957 by Fawcett Crest. The book is in paperback format and features cover art by Paul Lehr. It is intended for an adult audience and is written in English. The story takes place in a future where Earth is overpopulated and struggling, and follows the journey of a man who is transported to a distant planet. The novel explores themes of identity, power, and the consequences of scientific progress.