Standing out from the crowd with art sponsorship becomes unnecessary, as more and more of America's biggest corporations unify

Research reassess the dingy mini-skirt usually seen on editions of the work. Does the answer lie in Nebraska?

Stancioff spent her life charting the use of the same visual symbols by vastly distant cultures

Lagoon barriers rejected by the Green minister of the environment

100 galleries make their yearly migration

Rosemarie Trockel, Andreas Gursky and Stephen Balkenhol all show new work

Works acquired in a “suspicious manner” will begin to be returned at once

An exhibition on the art in British country houses aims to show the public that these collections play a modern, vital role in the nation’s culture

Don't miss the Beuys next door

The exhibition notably shuns the Marlborough gallery, which represented the artist throughout his life

Two Constables and three small paintings discovered to be missing from storage

Impressionist painters on the Seine at Wildenstein, the Gilded Age glows at Vance Jordan, exoticism at Mark Murray plus fine furniture and Picasso’s lino cuts

“The Lady with the Ermine” arrives in the city as part of its Italian tour

Confounding the male gaze until 29 November

“My grandfather copied his own works”

A twenty -year restoration project has removed many layers of overpainting

A former keeper offers some practical suggestions

Christine Sitwell and Sarah Staniforth (eds), Studies in the history of painting restoration

A defence of the Helion 'hoax'

Palazzo Schifanoia displays archive material from the Warburg Institute to commemorate her work

Archaeology in aid of tourism?

UK Charity Commissioners want access for women to Mount Athos

Zwirner turns his gallery into a sports bar for the World Cup

The area, unfortunately located close to the conflict in Kosovo province, is largely unexplored

The recent, widely publicised dispute over the provenance of two paintings by Egon Schiele, withdrawn last year from a loan exhibition at New York’s Museum of Modern Art on the grounds of contested ownership, offered a vivid illustration of the problems facing museums and private collectors who may find themselves having to prove good title to their possessions

At the Victoria and Albert Museum, a single curator, Mark Haworth-Booth, has developed one the four greatest collections in the world

Five years on and the museum has exceeded all expectations

Last curtain call for haute couture collector

1829 Kipresnky painting was taken to Berlin in the 1940's

Unsurprisingly, most of these collections strongly represent the art of their own country