Annie Leibovitz in detail

The photographer has moved away from celebrity portraits to explore the power of detail

Other exhibitions: ‘Self’, Jannis Kounellis and more

Also ‘Adventures of the Black Square’ and Sir Jacob Epstein

Robert Motherwell, Bernard Jacobson Gallery, London

The retrospective is an opportunity to reconsider this most European-inflected and nuanced of the American abstract expressionists

The Hermit and the Sleeping Angelica
©Kunsthistorisches Museum, Vienna

Rubens: imperfections of the flesh

The Old master’s influence on later artists is the thrust of the Royal Academy’s new show but its focus is badly misjudged, writes Jackie Wullschlager

Christian Marclay at White Cube’s storage space in London
©Greg Funnell

The fashionable art of Christian Marclay

From a 24-hour video installation to making vinyl records on the spot, the acclaimed artist talks about his work to Peter Aspden

Women in Kolbuszowa, Poland, in interwar film footage from 'Letters to Afar'
©Yivo Institute

Letters to Afar, Museum of the City of New York — review

Péter Forgács video installation is poignant but problematic

Other exhibitions: Theaster Gates, Serge Poliakoff and more

Also Omer Fast and Sharon Lockhart

'Foz Do Iguaçu Hotel' (2014). Picture courtesy of Sadie Coles HQ, London

Wilhelm Sasnal, Sadie Coles HQ, London

The extensive and powerful show of new paintings is playful but serious in asking what painting can be in the 21st century

Other exhibitions: Vicky Wright, Renato Guttuso and more

Also Daniel Silver, William Morris and Andy Warhol

Katy Moran, Parasol Unit, London

The artist makes intimate, small-scale works that tread the abstract/figurative tightrope with energy

Snapshot: ‘Promising Waters’ by Mila Teshaieva

The Berlin-based Ukrainian photographer chronicles life in Azerbaijan, Kazakhstan and Turkmenistan in this four-year project

British Museum tribute draws Merkel’s eye

Chancellor’s visit coincides with talk of McGregor move to Berlin

Julio Le Parc, Serpentine Gallery, London — interview

The Argentinian-born artist talks about his playful work

The Poetry of Light, Museo Correr, Venice

This rich celebration of Venetian drawing ranges from the Renaissance to the early 20th century

The Forever Now, Museum of Modern Art, New York — review

A survey of contemporary painting is depressingly inert

Other exhibitions: ‘A Crazed Flowering’, ‘Late Turner’ and more

Also Post Pop: East Meets West, The Royal Photographic Society Collection and Richard Serra

Turner in January, Scottish National Gallery, Edinburgh

The brilliance of these zealously conserved works stand out against the pallid light of winter days

Luc Tuymans: dark visions and enlightenment

‘Europe’s most important, provocative history painter’ talks about the new works in his forthcoming London show

Mario Sironi 1885-1961, Il Complesso del Vittoriano, Rome — review

Sterling exhibition of works by neglected Italian artist

Bartholomeus Spranger, Metropolitan Museum of Art, New York

The Flemish artist is celebrated in a heavy-breathing show full of erotic abandon