Reviews
“His most effective piece of work. Asimov’s exemplary clarity in plotting is precisely suited to the material at hand. Asimov’s engagement with the present is clearer here than in his other works, as is his engagement with the human.” —Locus
“By literary standards, this tale of time travel from the 95th century is generally rated Asimov’s best.” —Entertainment Weekly
“Asimov’s flirtation with the tropes employed by A. E. van Vogt and Charles Harness is startling for an author deemed ultra-rational and scientific.…
The effects of this influential, seminal book echo to the present, in the works of such writers as Greg Egan, John Varley, Kage Baker, and Greg Bear.” —SciFi.com