Beuys drawings based on the Renaissance master’s famous Codices Madrid show revolutionary artist experimenting with the ideas of another

The Tate unveils its previously unknown Bacon drawings to the world while two US museums present new views of the blockbuster British artist

A critical look at old and new conservation and preservation techniques

The case is particularly difficult given the scarcity of drawings by the artist

A field with keen collectors and plenty of sleepers at the auctions to challenge the dealers

Drawings believed lost go on display in “Masterpieces of Western European Drawing"

Christie's cancel a London sale and European dealers are flocking to the US to buy and sell

Row over dubious drawings comes to US

Newly discovered drawings now on show

Thirty-eight works impounded while court searches for a reliable expert

New book will cover the 1,000 Italian drawings in the Chatsworth collection

Newly bought architectural albums on show

The works were collected day by day, from 1907 to 1914, by Paul Alexandre during the artist’s stay in Paris

Of course every work of art is unique—but enter the technique of “hedonic regression”

They are also improving their Surrealism holdings

Discussing “Memories of a blind man – the self-portrait and other ruins” and his choice of drawings for the exhibition in the Hall Napoleon of the Louvre, from 26 October until 21 January 1991