# Is "Giant's Bread" by Mary Westmacott (Agatha Christie) a First Edition?

> **Quick answer.** A first edition of Giant's Bread by Mary Westmacott (Agatha Christie) (William Collins, 1930) is identified by: UK Collins published April 1930 under the Westmacott pseudonym (448 pp); US Doubleday, Doran followed August 1930 (358 pp). UK Collins (April 1930) precedes the US Doubleday, Doran edition (August 1930), so Collins is the true first.

**Checklist — a true first has these:**
- UK Collins published April 1930 under the Westmacott pseudonym (448 pp)
- US Doubleday, Doran followed August 1930 (358 pp)
- The first of six Mary Westmacott novels; the pseudonym was not publicly revealed as Christie until the mid-1940s
- Publisher imprint reads William Collins
- Not a book-club edition (see below)

| | |
|---|---|
| Author | Mary Westmacott (Agatha Christie) |
| Publisher | William Collins |
| Year | 1930 |
| True first | UK edition |
| Format | Hardcover (trade) |
| Key point | UK Collins published April 1930 under the Westmacott pseudonym (448 pp) |
| Book-club edition exists? | — |

## Points of issue
UK Collins published April 1930 under the Westmacott pseudonym (448 pp); US Doubleday, Doran followed August 1930 (358 pp). The first of six Mary Westmacott novels; the pseudonym was not publicly revealed as Christie until the mid-1940s.

## Is this the true first?
UK Collins (April 1930) precedes the US Doubleday, Doran edition (August 1930), so Collins is the true first. Collectible as the first pseudonymous Westmacott novel.

## Telling it from reprints & book-club editions
Later printings follow.

## Source
New Mexico Literacy Project — Is *Giant's Bread* by Mary Westmacott (Agatha Christie) a first edition? https://newmexicoliteracyproject.org/first-edition/giants-bread
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.