Featured Image: Poster, Winter Sales Are Best Reached by the Underground, 1924; Designed by E. McKnight Kauffer (American, 1890–1954); Published by Underground Electric Railways of London Company Ltd. (London, England); Printed by Johnson, Riddle & Company Ltd. (London, England); Lithograph; 110.2 × 64 cm (43 3/8 × 25 3/16 in.); Cooper Hewitt, Smithsonian Design Museum, Gift of Mrs. E. McKnight Kauffer, 1963-39-30; Photo: Matt Flynn © Smithsonian Institution