Featured Image: Poster, Power, The Nerve Centre of London’s Underground, 1930, printed 1931; Designed by E. McKnight Kauffer (American, 1890–1954); Published by Transport for London (London, England); Printed by Vincent Brooks, Day & Son (London, England); Lithograph; 101.6 × 61.4 cm (40 × 24 3/16 in.); Cooper Hewitt, Smithsonian Design Museum, Gift of Mrs. E. McKnight Kauffer, 1963-39-45; Photo: Matt Flynn © Smithsonian Institution