Exhibition of the week Theatre Picasso Tate ...

Starting a new collection can be daunting. Art advisor Patrick Monahan shares his top tips on what and how to buy and what to avoid

Rufus Bird detects a return to buying art for pleasure

A brass-inlaid rosewood table, three of four Seasons bursting with colour and a rare pair of powder-blue vases should draw every eye at the forthcoming Decorative Art Fair in London

Orlando Whitfield wades into the murky backwaters of the multibillion-pound art market to tell the true stories of the world’s most thrilling frauds, forgeries and heists

Together with ancient armour, Egyptian cats and illuminated manuscripts, this year’s Frieze Masters sees a colourful work by an even more colourful character, a Nigerian prince who set out to make ‘contemporary Yoruba traditional art’