Isabel Rawsthorne diptych on the block at Sotheby's

Proceeds will go towards new campus in Battersea

This change of stance has attracted controversy

College of Visual Arts in Brunswick

The 20th edition drew wealthy local collectors, such as the Duchess of Westminster and Tim Rice, but it remains a niche event

Movie producer Joe Simon-Whelan sues, believing his work is genuine

Expert vindicated after four-year legal battle

Court to rule on payment “held in trust”

A source close to the Andy Warhol Authentication Board hints at a change of heart

Emotional responses were elicited by Michael Stevenson and Andy Warhol

Collector of Chinese contemporary gets more than he bargained for..

Allegations circulate that curator Pontus Hultén created unauthorised replicas

Strong buying at this year’s fair, but good works are getting harder to find

Kapoor speaks of his fascination with reflective surfaces and how they interact with their environment

The Sunday Times values it at $9 billion, but several dealers disagree

Four based in India, one New York Indian, one US couple and one Japanese buyer

Satisfaction was felt among dealers at the fair's opening, where London was well represented

Are these a new hybrid of Artists-cum-collectors

Nearly 80 pictures, including works by Cranach and Kauffmann, were seized from the German embassy in London

Artist leads the campaign to protect his work

An alternative end for the rubbish that was to be thrown out from Bacon’s famously chaotic studio at 7 Reese Mews in London

Rumoured plan for Russian branch

Pieces represent first $10m in a probable $54m deal

Buyers were active in recent auctions and three new art funds have been started

Was the price forced up at Sotheby's sale?

A growing number of mid-size European auction houses are trying to cash in on the Russian boom