Editions of Prelude to Foundation

Paperback

Published Oct. 5, 1991 by Spectra.

461 pages

English language

Published May 5, 1988 by Grafton Books.

English language

Published May 5, 1988 by Doubleday.

400 pages

Published May 5, 2013 by Argo.

448 pages

English language

Published May 5, 2020 by Random House Publishing Group.

audio cassette

English language

Published Jan. 5, 1988 by Books On Tape.

English language

Published March 5, 1989 by Turtleback Books Distributed by Demco Media.