# Is "The Battle of the Labyrinth (Percy Jackson 4)" by Rick Riordan a First Edition?

> **Quick answer.** A first edition of The Battle of the Labyrinth (Percy Jackson 4) by Rick Riordan (Hyperion Books for Children / Disney, 2008) is identified by: First printing shows a full number line ending in 1 on the copyright page. The US Hyperion Books for Children hardcover (released 6 May 2008) is the true first.

**Checklist — a true first has these:**
- First printing shows a full number line ending in 1 on the copyright page
- Title page carries the Hyperion Books for Children (Disney) statement, 2008, ISBN 9781423101468
- Publisher imprint reads Hyperion Books for Children / Disney
- Not a book-club edition (see below)

| | |
|---|---|
| Author | Rick Riordan |
| Publisher | Hyperion Books for Children / Disney |
| Year | 2008 |
| True first | US edition |
| Format | Children's / illustrated |
| Key point | First printing shows a full number line ending in 1 on the copyright page |
| Book-club edition exists? | Yes |

## Points of issue
First printing shows a full number line ending in 1 on the copyright page. Title page carries the Hyperion Books for Children (Disney) statement, 2008, ISBN 9781423101468.

## Is this the true first?
The US Hyperion Books for Children hardcover (released 6 May 2008) is the true first. Confirm the complete number line ending in 1. First printing was very large (about one million copies), so first printings are relatively common.

## Telling it from reprints & book-club editions
Later printings drop the 1 from the number line; book-club printings differ.

## Source
New Mexico Literacy Project — Is *The Battle of the Labyrinth (Percy Jackson 4)* by Rick Riordan a first edition? https://newmexicoliteracyproject.org/first-edition/the-battle-of-the-labyrinth-percy-jackson-4
CC BY 4.0. Part of the Canonical First-Edition Points of Issue dataset (https://newmexicoliteracyproject.org/api/first-edition-titles.json). Last reviewed 2026-07-03.