This chapter reveals how the atlas as a cartographic format is more than a collection of maps. The British Atlas (1810) by John Britton and Edward Wedlake Brayely was published to accompany their The Beauties of England and Wales, a county-by-county survey with extensive letterpress illustrated by engraved views. Initially a highly commercial success as a national work during the war with France, The British Atlas was an integral part of Britton’s ambition to raise the reputation of topography as a cultural genre. The county maps and town plans were redrawn from the finest available surveys; packed with information and allusion, the plans in particular contained striking composite images. As so often in his career, Britton’s ambition ran ahead of his achievement, however. Complex and sometimes contentious relations between the various partners and contributors on The Beauties of England and Wales, including Britton and Brayley, affected research, authorship, design and production, and The British Atlas was unfinished, with just a fraction of the projected urban views published. The chapter details the ways in which the project’s fate was a familiar story of how material cartography with high production values and up-to-date information fared in the commercial market.