In Piccadilly Circus, London, L.S. Lowry, Britain's most popular painter of working class life, makes a rare excursion from his usual subject-matter of factories. The subtle yet sophisticated painting leads a remarkable single-owner collection of pieces by Lowry that will be sold at Sotheby's New Bond Street, just a few hundred yards from Piccadilly Circus. Learn more about Lowry: the A.J. Thompson Collection, to be offered in London on 25 March.