The artist and a cast of collaborators staged a colourful cautionary performance about the environment on the popular ferry

Van Leeuwen's new "passion fruit berry pop" flavour was inspired by the late artist’s colourful work, and some proceeds from sales will go to LGBTQ+ causes in New York

The banner, thought lost for more than 40 years, was recently authenticated by a vexillographer who had worked with the artist

Move comes amidst increased official scrutiny of civil society in China

LGBTQ exhibitions and works that are explicitly out and proud are magnets for official ire in mainland China

Salesroom hopes that capitalising on the trend for curated auctions will help to generate a renaissance in an underserved market

Our pick of items from auctions and fairs around the world over the next fortnight