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First-Edition Identification · Robert A. Heinlein

Is My Space Cadet a First Edition?

Charles Scribner's Sons, 1948

The points of issue

First printing carries the Scribner's 'A' together with the Scribner seal on the copyright page.

Decode the printer’s key: paste the number line into the decoder · Charles Scribner's Sons first-edition guide.

Is this the true first?

US Charles Scribner's Sons first edition is the true first.

Telling it from reprints & book-club editions

Later printings lack the 'A' on the copyright page.

Frequently asked questions

Is my copy of Space Cadet a first edition?

Look for these first-edition points: First printing carries the Scribner's 'A' together with the Scribner seal on the copyright page.

How do I tell the first printing from a later one?

Check the copyright page for the publisher's first-printing convention and confirm the points above. US Charles Scribner's Sons first edition is the true first.

Is the book-club edition the same as the first?

Later printings lack the 'A' on the copyright page.

I have a first edition of Space Cadet — what should I do?

If you're clearing books, New Mexico Literacy Project offers free pickup in Albuquerque, any condition, and makes sure collectible copies aren't lost. To sell, see the author's collecting guide. Either way, nothing valuable ends up in a landfill.

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