Contents:

Introduction (Cities of Wonder) • (1966) • essay by Damon Knight

Single Combat • (1955) • short story by Robert Abernathy

Dumb Waiter • (1952) • novelette by Walter M. Miller, Jr.

Jesting Pilot • (1947) • short story by Henry Kuttner and C.L. Moore [as by Henry Kuttner ]

"It's Great to Be Back!" • (1947) • short story by Robert A. Heinlein

Billennium • (1961) • short story by J.G. Ballard

Okie • [Earthman, Come Home] • (1950) • novelette by James Blish

The Luckiest Man in Denv • (1952) • short story by C.M. Kornbluth

The Machine Stops • (1909) • novelette by E.M. Forster

The Underprivileged • (1963) • short story by Brian W. Aldiss [as by Brian Aldiss ]

By the Waters of Babylon • (1937) • short story by Stephen Vincent Benét (aka The Place of the Gods)

Forgetfulness • (1937) • novelette by John W. Campbell, Jr. [as by Don A. Stuart ]