Plus, Robert Storr on his huge new book about the painter Philip Guston. Sponsored by Christie's

The book by Robert Storr delves into the American painter's dealings with Klansmen and how he wanted “to make paintings you couldn’t count money in front of”

An exclusive excerpt from a forthcoming biography by art historian Robert Storr looks at the influence of comics as well as caricatures that the American-Canadian artist made of his contemporaries

Exhibitions will focus on Paula Rego, Lubaina Himid, Yayoi Kusama and Sophie Taeuber-Arp as well as a major survey of Philip Guston

Whitney Museum exhibition will explore the enduring influence of artists such as David Alfaro Siqueiros on US counterparts including Jackson Pollock and Philip Guston