For anyone interested in the evolution of graphic design and peeking at old posters and signage, Quad Royal is a blog dedicated to mid-twentieth century British posters. Named for the British term for posters that measure 40 inches by 50 inches, Quad Royal features a number of posters, most of which were created for advertising on railroad or tube trains. One recent post, for example, features two gorgeous "map posters" of Norwich and Cambridge created by artist Kerry Lee. These colorful posters, published by the British Railways, feature buildings and sites that can be found in each city. Another recent post highlights the work of Clifford and Rosemary Ellis, who created a number of posters for London Transport, including a series of birds and a curious, cubist-inspired piece which, a bit bafflingly, suggests "It's better to shop early...Early in the month."