Rokni Haerizadeh sold his work to the museum at a reduced rate before it was auctioned without his permission

Political turmoil and economic crisis keep collectors away from countries such as Venezuela, so galleries rely more on fairs

The painting, thought to be the second version of the Baroque artist’s Judith Beheading Holofernes will be auctioned this June with an estimate of £86m-£129m

NG27 group's case is described as first in public sector to address concerns over “gig economy” but museum says there will be implications

Fifteen artists show conceptual craft and design works, some of which reflect current concerns

Art Fund raises concerns about consignment of 152 works to auction by Hertfordshire County Council

New 350 sq. m contemporary art space E-Werk Luckenwalde has joined the programme for the event's fifth anniversary

The journalist, accused of spreading propaganda, was backed by Banksy

Artists on show will include John Akomfrah, El Anatsui and Lynette Yiadom-Boakye

“Many people are buying membership just so they can get in,” ticket attendant says

Almost 300 Modern and contemporary works will be withdrawn amid funding dispute with the Jerwood Foundation

Exhibition on Ghanian artist is due to tour to Mathaf: Arab Museum of Modern Art in Doha in the autumn

Plus, an art gallery "rap battle"

We speak to the co-founder of Freedman Fitzpatrick gallery in Los Angeles about coding, George Bush and mistaking dealers for magicians

“The results are magical, otherworldly, surreal and hyper-real but never dull,” says curator Ali Subotnick

We speak to the senior director of Night Gallery in Los Angeles about art world small talk, forgotten studio visits and the resurgence of photography

Leading curators on their travel schedules, how technology shapes their visions—and whether they are aware of their carbon footprints

Marie-Paule Quix says work is by Giorgio Ceragioli not the symbolist Belgian painter

The Los Angeles-based philanthropist tells us what she's bought and why

Kristian von Hornsleth enables collectors to track London homeless

The original painting is never shown, only copies and projections are displayed

The organisation has relocated to the former home of Thanet School of Arts and Crafts on Hawley Square

The ceramicist will also unveil library of books by exiled writers at Ateneo Veneto to coincide with the opening of the 58th Biennale

The Turkish curator has worked on Art Night and was recently named director of the Draf project

“In defining art's formal limits, he was the most radical painter of his time,” says art historian Robert Storr

Italian scholar says terracotta statuette, currently attributed to Antonio Rossellino, is actually by the 15th-century master

Sculpture of Peter Pan and painting by Gluck were among the stars of five-hour long auction

Performance using cutting-edge Magic Leap One device is world first

Officials finally implement fee designed to control tourist numbers

Woodcarving was taken from the African country in 1830 by the UK explorer Richard Lander