# Is "This Is Not My Hat" by Jon Klassen a First Edition?

> **Quick answer.** A first edition of This Is Not My Hat by Jon Klassen (Candlewick Press, 2012) is identified by: Copyright page states 'first edition' with a full Candlewick number line descending to 1; an oblong (landscape) octavo of 32 pages in full color, bound in black paper over boards. The US Candlewick edition (Somerville, MA) is the trade first; a UK Walker edition appeared the same year.

**Checklist — a true first has these:**
- Copyright page states 'first edition' with a full Candlewick number line descending to 1; an oblong (landscape) octavo of 32 pages in full color, bound in black paper over boards
- The true-first dust jacket carries no Caldecott or Kate Greenaway medal seal and retains its printed price
- Publisher imprint reads Candlewick Press
- Not a book-club edition (see below)

| | |
|---|---|
| Author | Jon Klassen |
| Publisher | Candlewick Press |
| Year | 2012 |
| True first | US edition |
| Format | Children's / illustrated |
| Key point | Copyright page states 'first edition' with a full Candlewick number line descending to 1; an oblong (landscape) octavo of 32 pages in full… |
| Book-club edition exists? | — |

## Points of issue
Copyright page states 'first edition' with a full Candlewick number line descending to 1; an oblong (landscape) octavo of 32 pages in full color, bound in black paper over boards. The true-first dust jacket carries no Caldecott or Kate Greenaway medal seal and retains its printed price.

## Is this the true first?
The US Candlewick edition (Somerville, MA) is the trade first; a UK Walker edition appeared the same year. The book won the 2013 Caldecott Medal and the 2014 CILIP Kate Greenaway Medal, so the true first predates both seals.

## Telling it from reprints & book-club editions
Later printings add medal seals to the jacket and drop the low digits from the number line; the board-book adaptation is not a first edition.

## Source
New Mexico Literacy Project — Is *This Is Not My Hat* by Jon Klassen a first edition? https://newmexicoliteracyproject.org/first-edition/this-is-not-my-hat
CC BY 4.0. Part of the Canonical First-Edition Points of Issue dataset (https://newmexicoliteracyproject.org/api/first-edition-titles.json). Last reviewed 2026-07-04.