The points of issue
Phantasia Press signed/numbered limited edition (500 copies, slipcased, signed by Niven, folded map laid in) is the true first edition in book form, preceding the Holt trade. The Holt, Rinehart and Winston trade hardcover (stated 'First Edition', priced jacket) followed and is the first trade edition.
Is this the true first?
The Phantasia Press limited edition is the true first in book form; the Holt trade is a later first trade edition, not a parallel issue. The original record's framing (Holt as the first, Phantasia as a parallel) understated Phantasia's precedence.
Telling it from reprints & book-club editions
A book club edition derived from the Holt trade exists with a blind stamp and unpriced jacket; the Phantasia limited has no book-club counterpart.
Frequently asked questions
Is my copy of The Ringworld Engineers a first edition?
Look for these first-edition points: Phantasia Press signed/numbered limited edition (500 copies, slipcased, signed by Niven, folded map laid in) is the true first edition in book form, preceding the Holt trade. The Holt, Rinehart and Winston trade hardcover (stated 'First Edition', priced jacket) followed and is the first trade edition.
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. The Phantasia Press limited edition is the true first in book form; the Holt trade is a later first trade edition, not a parallel issue. The original record's framing (Holt as the first, Phantasia as a parallel) understated Phantasia's precedence.
Is the book-club edition the same as the first?
A book club edition derived from the Holt trade exists with a blind stamp and unpriced jacket; the Phantasia limited has no book-club counterpart.
I have a first edition of The Ringworld Engineers — 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.