This October, Apollo previews TEFAF New York Fall and Frieze Masters, and features articles on Martin Luther’s image, the purpose of design museums, and the Kunsthistorisches Museum, Vienna. Isabel Stevens talks to Julia Stoschek about the difficulties of collecting video art, and Martin Gayford meets the Iraqi-born artist Dia Al-Azzawi on the eve of his retrospective in Doha. Plus: David Anfam on Clyfford Still, Simon Starling at the Japan Society, and Xavier Salomon on Della Robbia. Preview the issue below.