William Nicholson's "London Types: Cover" is a decorative cloth portfolio cover designed for a series of lithographic prints depicting various social characters of early 20th century London. Created as original cloth rather than paper, the cover exemplifies Nicholson's skill in graphic design and his ability to capture the essence of urban life through simplified forms and bold compositional choices. The work reflects the aesthetic principles of the Arts and Crafts movement and the prevailing taste for illustrated portfolios among collectors of the period.