Estimated at up to £50,000, a large-scale piece made of coal sacks will go on the block at Bonhams in October

The commission for the controversial Unravel show reflects geopolitical themes

The prize, established by Dia Art Foundation and the Sam Gilliam Foundation, comes with a $75,000 gift and public programme at Dia

Purple Hibiscus will be unveiled in April as part of a new exhibition at the gallery

The installation features a reclaimed Ghanaian railroad track that visitors were previously encouraged to interact with

The trains join converted Soviet aircrafts as new work and education spaces

On the eve of a new London show, the Ghanaian artist discusses how he is turning a disused food silo in his homeland into a cultural centre

Winning sculptures will go on show in central London in 2022 and 2024

Show’s 22nd edition aims to be as much a conversation as an exhibition, with hundreds of public events including bushwalks with aboriginal elders and campfire talks

We speak to the Ghanaian artist as he unveils a major new commission at the Whitworth as part of the Manchester International Festival. Plus, we find out about the Picasso blockbuster at UCCA in Beijing. Produced in association with Bonhams, auctioneers since 1793.