Leslie “Max” MacDonald Gill (1884–1947) transformed practical maps into exuberant works of graphic art, combining bold lettering, decorative borders, miniature figures, ships, animals and sly visual jokes. This collection reflects three important strands of his career: rare London Underground maps of 1922–23, developed from his celebrated Wonderground design; monumental pictorial maps of Ireland, Scotland and Canada commissioned by the Empire Marketing Board to promote imperial trade; and his richly detailed 1946 map of the Colne Valley cloth district. Together they show Gill adapting his instantly recognisable visual language to transport, government publicity and regional industry. Original examples—particularly the enormous Empire Marketing Board sheets—are scarce and make exceptionally striking display pieces.