A legal case brought against Sotheby’s by a major Greek collector could be the tip of the iceberg

Do they present a potent threat to the long-standing dominance of Christie’s and Sotheby’s?

Some truly stunning pieces are to appear on the block this year

Market gains ground as annual auctions bring in new collectors

Sotheby’s auction sold out but buyers still predominately international

With toys and trains galore, the April sale will appeal to the child in everyone

Tied to increasing prominence of private sales by auction houses

Insurance for sellers or market manipulation?

Russian money behind many sales as records tumble

Cancellation follows accusations that the object was looted, although no formal claim has been made

A broad range of works reap favourable prices

Christie’s totals higher, but Sotheby’s had the standout individual piece

Some good prices were made, but top quality works were relatively thin on the ground

But Iran’s Moshiri can’t get into the Middle East top ten

Sarah Morris, Mark Bradford, and Andy Warhol are this season's London highlights

Work offered to National Trust

Collector Helga Lauffs has donated the works, subject to conditions

'10 auction report observes revived market in London

Yves Klein, Günther Uecker, and Peter Doig are this season's highlights

In an unusual move, Sotheby’s has categorised a picture as “infamous”

Whilst lesser pieces go unsold

The market has recalibrated, but major pieces spark highly charged bidding wars

Houses keep their heads above water with wider international selection

Rembrandt, Domenichino, Raphael and Van Dyck all on offer, but how many will remain in the UK?

Saatchi sells two Kippenberger paintings

Last of rare Benin ivories in private hands is expected to go on the market

Mixed results as contemporary art nosedives while earlier works avoid the worst

Collectors respond as prices drop to 2005-6 level

The current drop in activity may be healthy for the sustainability of the future art market