Some of Cecily Brown’s paintings at Blenheim misfire, but the best are snappy and subversive

Waldemar Januszczak is given exclusive access to the most important of the artist’s outpourings at the gallery’s temporary home

The academic calls depictions of the naked form ‘soft porn for the elite’. She’s behind the curve

Van Eyck may not have invented oil paints, but he mastered them in an exceptional way, as this enlightening show in Belgium proves

This fascinating exhibition reveals the full scope of his brilliance

Tehran’s gleaming tombs and Isfahan’s soaring madrasas barely scratch the surface of the Iranian contribution to culture. By Waldemar Januszczak

Waldemar picks his highlights from the past decade

A pugnacious Hogarth show at the Sir John Soane’s Museum is full of political pertinence

The American artist brings a quietly shocking show about slavery to Liverpool

The V&A’s motor show is full of vivid observations — understand it and you will understand humanity