Smith's 1815 map was the subject of Simon Winchester's Map that Changed the World. This map was never published as a single sheet. The large size of the original map and the size of the printing presses in the early 19th century meant that it had to be published in fifteen sections, each folded into six `panels'. At its original scale of five miles to the inch, the map would have been eight feet long by six feet wide if it had ever been published as a single sheet. This reproduction is published at half scale: ten miles to the inch, and is colour-matched to the original.