Julia Michalska

Koyo Kouoh, the Cameroon-born curator who was director of Zeitz Mocaa in Cape Town and had been invited to curate next year’s Venice Biennale died on 10 May. There has been an outpouring of moving tributes to Kouoh from artists, curators and gallerists across the world, and Ben Luke speaks to Nolan Oswald Dennis, the Johannesburg-based artist who has a current show at Zeitz, and Liza Essers, the owner and director of Goodman Gallery, about her life and work.

This week: after a two-year closure, the National Gallery’s Sainsbury Wing reopens this week, revealing a major overhaul by the architect Annabelle Selldorf. The gallery has also rehung its entire collection and Ben Luke takes a tour of both the revamped building and the new displays with the National Gallery director, Gabriele Finaldi.

During his lifetime, the late artist Frank Auerbach never had an exhibition in Berlin, the city of his birth, which he left for the UK in 1939 to escape the Nazis. This weekend, the first show of his work in the German capital opens at the Galerie Michael Werner. Our digital editor, Alexander Morrison, went to Berlin to talk to the artist’s son, the filmmaker Jake Auerbach, about the exhibition.