# Is "The Sum of Our Days" by Isabel Allende a First Edition?

> **Quick answer.** A first edition of The Sum of Our Days by Isabel Allende (HarperCollins, 2008) is identified by: US HarperCollins first edition of 2008 (ISBN 978-0-06-155183-3), with a full number line ending in 1 on the copyright page. First English-language edition of the memoir La suma de los días (2007).

**Checklist — a true first has these:**
- US HarperCollins first edition of 2008 (ISBN 978-0-06-155183-3), with a full number line ending in 1 on the copyright page
- Translated from the Spanish by Margaret Sayers Peden
- Publisher imprint reads HarperCollins
- Not a book-club edition (see below)

| | |
|---|---|
| Author | Isabel Allende |
| Publisher | HarperCollins |
| Year | 2008 |
| True first | US edition |
| Format | Hardcover (trade) |
| Key point | US HarperCollins first edition of 2008 (ISBN 978-0-06-155183-3), with a full number line… |
| Book-club edition exists? | Yes |

## Points of issue
US HarperCollins first edition of 2008 (ISBN 978-0-06-155183-3), with a full number line ending in 1 on the copyright page. Translated from the Spanish by Margaret Sayers Peden.

## Is this the true first?
First English-language edition of the memoir La suma de los días (2007). The US HarperCollins edition is the true first in English.

## Telling it from reprints & book-club editions
No notable book-club edition affecting the first-edition identification.

## Source
New Mexico Literacy Project — Is *The Sum of Our Days* by Isabel Allende a first edition? https://newmexicoliteracyproject.org/first-edition/the-sum-of-our-days
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.