Grayson Perry

Beyoncé effect fills galleries with a new generation of art devotees

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Fame sells: that’s the lesson in a survey revealing the world’s most popular exhibitions during a bumper year

Van Gogh leggings and Tracey teacups: how art merch broke out of the gift shop

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Jackson Pollock socks, Louise Bourgeois eyemasks, Guerrilla Girls air freshener … what’s behind the explosion in art merchandise – and who’s really making the money?

Buy a masterpiece for 67p! New stamps by Tracey Emin, Yinka Shonibare, Grayson Perry and more

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Tracey Emin drew her dying mother, Grayson Perry honoured Warhol, and Yinka Shonibare sneaked a bit of Africa into some English brollies … artists reveal all about their dazzling new stamps

Rowan Moore: the best architecture of 2015

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From dumb towers to cool interventions, 2015 saw the gap widen between the big and brainless and the small and thoughtful

• Observer critics’ reviews of the year in full

Middle class people dominate arts, survey finds

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Findings also reveal extent to which gender and ethnicity influence prospects of entering and gaining fair deal in industry