Trivia / Possible Tomorrows

• Billing Displacement: On the original cover for Pyramid, all five authors had their names listed on the front cover, but when the cover was revised with new artwork, they removed all of the authors except for Isaac Asimov, who was Billed Above the Title along with the editor, Groff Conklin.
• Completely Different Title: The German translation adapted this particular Anthology into an existing series, so the book(s) appeared as Science Fiction Stories 15 and Science Fiction Stories 16.

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