Notes: • "First American Edition" • Printing not stated, no number line • Month from code 2/83 on back cover • The artist is not credited, Foss' characteristic "F" inside a box is on the artwork • On page [1] and in the Introduction, credit is given as follows:

• Peter Nicholls: author of chapters 1, 2, 5 and part of 7 • David Langford: author of chapters 4, 6, 10 and 12 • Brian Stableford: author of chapters 3, part of 7, 8, 9 and 11

• In the TOC the Introduction is given as starting on page 7, it starts on page 6 • Contains an extensive bibliography and index