Plus, Art Basel: are the buyers back? And Mary Beard on images of power

US dealer launches new space with giant Alexander Calder sculpture in the Place Vendôme

A new book looks at the detailed preparations and 60 years of planning behind the work being unveiled in Paris

A new show looks at the Renaissance artist’s role as a designer and head of a busy workshop as well as the inventor of an instantly recognisable style

The ambitious project has been around 60 years in the making

Current director of Marseille museums will take up coveted post under newly appointed Pompidou president Laurent Le Bon on 1 October