The case is just the latest in a long-running dispute between the collector’s descendants and the foundation that manages her art in Venice

Dealer who tried to sell the work says it was a “biting rebuke” of the town’s triennial

After widespread protests this summer, the government releases a new proposal to calm concerns from leading artists, collectors and dealers

The Maleki case exposes the perils of mixing business with friendship in the art world

Art trade up in arms over implications of draft bill that aims to protect the import and export of cultural property

Some say an international treaty will be fairer for all, others that it will mainly benefit the famous and dead

Yves Bouvier denies Russian billionaire’s claim that he overcharged for $1bn-worth of art

Two recent plagiarism cases throw light on the country's lax stance on copying

Six cases remain open in Abstract Expressionist fakes scandal that has entangled many in the art industry

Joseph Tierney says the Italian designer Moschino has used his work without permission in a line of clothing famously worn by the pop singer

The fear of public opinion or the hint of legal action can cause nervous curators and directors to cancel shows when they might not need to

New York panel pits lawyers against practitioners

As new challenges emerge, tighter regulation is needed, they tell New York conference

An Ohio collector says the artist did, after he purchased her restored Log Cabin from a gallery for $1.4m, but a representative for the dealer says she just wanted the work to be revalued

Danish-Vietnamese artist says his “artistic integrity has been violated” by Rotterdam judge’s ruling in Bert Kreuk case

Book tells of Nadia Plesner’s three-year battle to clear her name after luxury fashion company took offence at her drawing of a designer bag

Atena Farghadani punished after depicting politicians as animals

Freedom of expression at centre of lawsuit claiming that professor’s advice was “harassment”