Press Preview Of Impressionist, Modern And Contemporary Artworks Ahead Of Their Auction At Sotheby's

LONDON, ENGLAND - JANUARY 31: A Sotheby's employee poses with a painting by Pablo Picasso entitled 'Femme assise pres d' une fenetre,' 1932, on January 31, 2013 in London, England. The piece makes up a selection of works by artists including Monet, Miro, Picasso and Richter and is estimated to sell for between 25-35 Million GBP at auction in the 'Impressionist and Modern Art' evening sale at Sotheby's auction house on February 5, 2013. (Photo by Dan Kitwood/Getty Images)