One of the absolute must-have top ten SF books of all time with an awesome new cover treatment.
James Blish's galaxy-spanning masterwork, originally published in four volumes, explores a future in which two crucial discoveries - antigravity devices which enable whole cities to be lifted from the Earth to become giant spaceships and longevity drugs which enable their inhabitants to live for thousands of years - lead to the establishment of a unique Galactic empire.
An outrageous imaginative coup...Crammed with high adventure yet illuminated by a searching intelligence, this four-part epic completely reinvented the traditions of space opera. - Paul J McAuley.
Of the first importance. - The Encyclopedia of Science Fiction.
This is the real heady wine of science fiction - exciting, intelligent, galaxy-spanning stuff. - Terry Pratchett.
James Blish (1921-75) studied microbiology at Rutgers and then served as a medical laboratory technician in the US army during the Second World War. Among his best known books are Cities in Flight, A Case of Conscience, for which he won the Hugo in 1959 for Best Novel, Doctor Mirabilis, Black Easter and The Day After Judgement.