We talk to Louisa Buck about the decision to award the Turner Prize to all of the nominees. Plus, Miami-born artist Teresita Fernández tells us about her homecoming show at Pérez Art Museum Miami. Produced in association with Bonhams, auctioneers since 1793

Lawrence Abu Hamdan, Helen Cammock, Oscar Murillo and Tai Shani's decision to share the prize reflects the collective nature of their work, but how this could impact the award remains to be seen

We talk to German artist Anselm Kiefer about his new works inspired by String Theory and ask expert Scott Reyburn why the art market is treading water. Produced in association with Bonhams, auctioneers since 1793

In this bumper edition we interview three of the world's leading artists, all of whom have shows timed to coincide with Frieze in London, plus all the latest news from the fair

Frieze has long prided itself on its eco-credentials, but these small gestures are negligible in the face of the planet's immediate climate crisis

In her new solo show at London's National Portrait Gallery, the artist connects the past with the present

London exhibition tells a complex story of body, space and boundaries

Known for this dangling horse and gold toilet, the Italian artist's exhibition is in the unlikely setting of Winston Churchill's birthplace