The Iranian businessman has an extensive collection of Islamic and modern art

Zabludowicz is also planning a Las Vegas space

Decision made after rejection by the Thyssen-Bornemisza Museum in Madrid

A former garage becomes an art space, as the Ivory Press publisher inaugurates building designed by her husband

We look at the talking points and early sales

Bigger stage for German collectors

Wax and wane: Gilbert dummy in V&A storage

In an economic downturn, collectors are calling the shots

The large-scale “disaster painting” is the most expensive Andy Warhol ever to sell at auction

The Moscow-based collector has amassed a hoard of Russian contemporary art

Reinhold Würth has converted a church for old masters

$6m from sale of Chinese paintings, including a Zeng Fanzhi, encourages him to review his remaining collection

Shelby White returns two two fourth century BC objects

70 works to be installed in riverside factory

As Tate Britain opens a major travelling retrospective, we examine the factors underpinning the meteoric rise in prices for the artist’s work and reveal the identity of his biggest collectors

“We meet a broader range of collectors here”

Guan Yi tells us about his plans to open a museum and sculpture park on a 16.5-acre plot of land in Beijing

A new contemporary art gallery for Barcelona

While the known and bankable sold at a steady rate, Abramovich was the name on everybody's lips

Telecoms millionaire, restaurateur, hotelier, reality TV producer, gallery owner and collector

Chelsea FC owner joins Brad Pitt and Sheikh Saud Al-Thani at vernissage

Design is in vogue, as buyers show appreciation for the everyday turned decorative

“What is often described as the ‘undue’ influence of collectors and dealers is less of a threat than the noticeable tendency for these parties to lose interest in public institutions”

Gallery director says private sector must be courted, not alienated

Médecins Sans Frontières will get millions from the sale

Meet the collector opening a James Turrell museum in the Andes

Complaint says work could lose $3m in value as a result

The London-based Russian billionaire has bought the record-breaking works; he has not previously been known to collect art

Dealers are growing increasingly wary of do-it-yourself institutions