From opera singers to homewares, works in the 2015 exhibition break out of traditional art categories

Buying was visible at the very top, but the confidence this gave is now on the wane

Modern Italian works set to steal contemporary art’s limelight (again) in Frieze Week sales

Cosmoscow fair aims to kickstart local appetite

William Kentridge's marching refugees, Luc Tuymans's abstract friends and possibly the capital's tiniest show

Magnus Resch conducted ten-year study

Report says business has doubled to $10bn in four years

Falls in private sales, Russian art and London auctions dent otherwise strong performance; Sotheby's sales also flat

Impressionist and Modern art auctions were in line with expectations

Around 300 pieces from the Swiss organisation's sizeable art collection is on display at the Schaulager

Dealers from Switzerland acknowledge they need to be aware of buyers’ budgets at the fair

Gallery partner says the Italian Modernist sculptor is less known outside of Europe

Experiences at the fair range from reclining in a hammock to enjoying an ice cream

Museums and the trade want to put an end to the Catch-22 situation with Medici and Becchina

This year’s edition offers a more logical layout and a green Messeplatz project

Poaching leads Willis to get injunction and accuse JLT of conspiracy

Paddle8 moves to new premises in Mayfair

Questions remain over authorship of panel that could be by Duccio

Football club owner has built large collection, with more than 150 Modern British works on public display

Tiroche DeLeon collection focuses on works from developing countries<br>