It’s the week in London when the three main auction houses have sales of a wide range of 20th century and contemporary art.  While it is impossible to be comprehensive – I did not spot any work by Cuban artist Wilfredo Lam for example – the three auction houses do provide an outstanding exhibition between them and it is always a joy to find new work, for example by Andy Warhol where you assume that everything that he did has been exhibited before.

The big guns are at Sotheby’s with David Hockney’s seminal ‘The Splash’ from 1966 (estimate £20 million to £30 million), along with his ’30 Sunflowers’ from 30 years later to be auctioned in Hong Kong in April, supported by Bridget Riley’s ‘Shift’ from 1963, Yves Klein’s ‘Untitled Anthropometry (ANT 132) from 1960 and Francis Bacon’s ‘Turning Figure’ from 1963, from which you might assume that the 1960′s was a defining decade for 20th century art.

Also on show at the different locations are Damien Hirst, Antony Gormley and KAWS, alongside work by Gayson Perry – no longer a rebel -, Alex Katz (with an exhibition nearby), Banksy (with a political twist related to Brexit), Cristo, Erwin Wurm, Sigmar Polke, Maurizio Cattelan, Jean Buffet, Sterling Ruby, Tony Cragg and many others inevitably mainly from the UK and Europe, including an on-line auction at Sotheby’s of work by Picasso from the collection of Marina Picasso which has a synergy with the exhibition on Picasso and Paper at the Royal Academy a short distance away.