NMLP P-007210 · True-first precedence · minted 2026-07-04

Horton Hears a Who!

Dr. Seuss (Theodor Seuss Geisel) · Random House · 1954

The US Random House 1954 edition is the true first. Identification rests on the 1954-only copyright page, the 250/250 jacket price, and the first-state 'full ear' rear-panel artwork, since the text plates are unchanged across printings.

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New Mexico Literacy Project — True-first precedence NMLP P-007210 for "Horton Hears a Who!" by Dr. Seuss (Theodor Seuss Geisel) (https://newmexicoliteracyproject.org/id/point/p-007210, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).