In the final episode of our ‘Summer Talks’ series, watch Sotheby’s specialist Simon Stock in conversation with British sculptor Conrad Shawcross and Zoé Whitley, Director of the Chisenhal Gallery. Ahead of Sotheby’s cross-category Evening Sale ‘Rembrandt to Richter' (28 July | London), Conrad and Zoé explore the wider topics of existentialism and the rational and irrational, and how this is illustrated through the power of art and sculpture. Click here to watch more Sotheby's videos.