Waterstones Booksellers Limited, trading as Waterstones, is a British book retailer that operates 311 shops, mainly in the United Kingdom and also other nearby countries. As of February 2014, it employs around 3,500 staff in the UK and Europe. An average-sized Waterstones shop sells a range of approximately 30,000 individual books, as well as stationery and other related products.

Piccadilly is a road in the City of Westminster, London, England, to the south of Mayfair, between Hyde Park Corner in the west and Piccadilly Circus in the east. It is part of the A4 road that connects central London to Hammersmith, Earl's Court, Heathrow Airport and the M4 motorway westward. St James's is to the south of the eastern section, while the western section is built up only on the northern side. Piccadilly is just under 1 mile (1.6 km) in length, and it is one of the widest and straightest streets in central London.