Are You Using That Chair,Banksy,Oil on canvas,2005

An exhibition of 20 original works on canvas, pallet and steel by the renowned urban/grafitti artist, Banksy, including the largest canvas yet to become available, measuring fourteen feet in length, will go on show tomorrow until 16 May at the Andipa Gallery in Knightsbridge, London.

Andipa was the first gallery to put on a major exhibition of Banksy's work in the secondary market. Over 25,000 people visited the gallery during the exhibition in 2008 to view one of the most extensive private surveys of the artist's work brought together in recent years.

This exhibition will show only original canvases, such as Are You Using That Chair (2005). Measuring over four meters in length, this is the largest canvas by Banksy to have come onto the market. The work is based on Edward Hopper's well-known painting Nighthawks (1942). Another work to be included is an original oil on canvas depicting a traditional portrait of an English Lord struck by a custard pie.