This March, Sotheby's in London will host a series of sales that promise to showcase works by some of the titans of Contemporary, Impressionist and Modern Art. As a rare Richter iceberg painting comes to auction for the first time in the Contemporary Art sale, alongside paintings by Georg Baselitz, Sigmar Polke and Yayoi Kusama. Joining them in this notable line-up is Jean Dubuffet's L'Homme au Papillon, from the collection of legendary British collector Ted Power, who owned more than 80 works by Dubuffet. Power, who championed the work of artists from Jackson Pollock and Barnet Newman to David Hockney and Joseph Beuys, was among the first collectors in Britain to collect art in the international arena. The Impressionist and Modern Art Evening and Day sales are accompanied by the Surrealist Art Evening Sale, in which Magritte's extraordinary La Repas de noces (1940) plays a key role. Now in its third year, this auction turns focus on the growing Surrealist market, with captivating works by Miró, Picabia and Dalí being offered against the backdrop of Impressionist masterpieces going up for sale on the same evening. Click thourgh to see a selection of highlights from across the sales.