Laura Cumming: best art of 2016

Portraits woke up, the tiny Goldfinch flew in, the Switch House switched on, and junk art triumphed

• Observer critics’ reviews of the year in full

From leggings to baubles, enterprises offer artists a new canvas

Businesses are finding opportunities to work with top galleries – and nurturing novel forms of creative collaboration

Damien Hirst and Picasso: coming soon to a National Gallery near you?

Gabriele Finaldi is right. The Tate shouldn’t have exclusive access to 20th-century art. It’s time to end these closed-minded historical art wars

Laura Cumming: the best art of 2015

It was a wonderful year, as Goya’s extraordinary portraits got together, Ai Weiwei broke free and Eric Ravilious took us to the skies

• Observer critics’ reviews of the year in full

Why Rio’s street artists hate the World Cup, and much more – the week in art

Brazil’s anti-World Cup graffiti, Antony Gormley’s hotel room inside a Transformer, plus Ai Weiwei sparks an internet craze of ‘leg-guns’ and Glasgow School of Art’s degree show goes ahead after the fire – all in your fave weekly dispatch