Andy Warhol’s intimate polaroids: from Divine to Bianca Jagger

A new book by Taschen offers a fascinating insight of Andy Warhol’s intimate relationship with his celebrity friends – and the look he wanted from them for the photographs

The Stirling prize 2015: the virtues of quiet craft

The shortlist for this year’s Stirling prize is dominated by ‘whispering’ candidates – scrupulous designs of brick and timber

Yoko Ono: ‘To be an artist you need courage’

For more than 50 years Yoko Ono has been campaigning – for peace, for feminism, for gun control and, most recently, against fracking. This tireless activism, she says, is at the heart of her work as an artist. Alex Needham meets her at home in New York

Body building: welcome to Beyoncé towers

Queen Bey’s curves have inspired a new skyscraper. But it’s by no means the only superstar-shaped building out there

Museums and looted art: the ethical dilemma of preserving world cultures

How can western ‘universal’ museums acquire and display artefacts without stoking the illegal arts trade and reproducing colonialist narratives?

The end of animal testing? Human-organs-on-chips win Design of the Year

They may look like humble little blocks, but these miracle devices could end animal testing, revolutionise the development of new drugs – and lead us into a world of entirely personalised medicine