Alfred Stieglitz, Georgia O'Keeffe (1918–1919), palladium print, included in 'African Art, New York, and the Avant-Garde', The Metropolitan Museum of Art, New York, 2013

Shanay Jhaveri lives in Mumbai, India, and London, UK.

By Shanay Jhaveri
Eli Weinberg, Crowd Near the Drill Hall on the Opening Day of the Treason Trial, Johannesburg, December 19, 1956. Times Media Collection, courtesy Museum Africa, Johannesburg.

Emily Pethick is director of The Showroom, London.

By Emily Pethick
Jesse Jones, The Other North, 2013, film still

Declan Long is co-director (with Francis Halsall) of the MA Art in the Contemporary World programme at the National College of Art & Design in Dublin, Ireland.

By Declan Long
An audience member performing a reading of Kristin Sue Lucas's Refresh (2007) at 'Visions of the Now' festival, Stockholm, 2013. Photograph: Märta Thisner

Tyler Coburn is an artist and writer based in New York.

By Tyler Coburn
Centro Cultural São Paulo, one of the venues of the 10th Bienal de Arquitetura de São Paulo, 2013; photograph: Carlos Rennó

Silas Martí is a contributing-editor of frieze based in São Paulo, and staff visual arts, architecture and design writer at Folha de S.Paulo newspaper.

By Silas Martí
Bennett Simpson speaking at 'Blues For Smoke', the Geffen Contemporary at MOCA, L.A.

Carmen Winant is an artist and writer. She teaches at the University of Colorado. Her writing appears in Frieze, Art Papers and The Believer, among others.

By Carmen Winant
Amie Siegel Provenance, 2013

Chris Wiley is an artist and writer. He recently acted as an advisor and catalogue writer for ‘The Encyclopedic Palace’ at the 55th Venice Biennale.

By Chris Wiley
Launch of Ruth Sacks’s group exhibition and intervention 'Regions A-G', held at the Johannesburg Public Library; photograph: Sean O’Toole

Sean O’Toole is a regular frieze columnist, and co-editor of CityScapes, a critical journal for urban enquiry. He lives in Cape Town, South Africa.

By Sean O'Toole
Stephen Sutcliffe, Outwork, 2013, installation view, Tramway, Glasgow

Sarah McCrory is the director of Glasgow International, a biennial festival of contemporary art. The next edition is 4 – 21 April 2014.

By Sarah McCrory
Willie Doherty Without Trace (2013) single channel HD video projection, installation view Galerie Peter Kilchmann, Zurich

I awaited Willie Doherty’s solo show at Galerie Peter Kilchmann in March with a degree of nervousness, knowing that he was to reveal new work made in Zurich.

By Aoife Rosenmeyer
Trevor Paglen, The Last Pictures, 2013

Orit Gat is contributing editor for Rhizome. She writes about art for other places, too.

By Orit Gat
Wentke (Coat) (detail), Netherlands, mid-18th century, included in 'Interwoven Globe', Metropolian Museum, New York, 2013

Jason Farago is a columnist and critic based in New York. He is a regular contributor to The Guardian.

By Jason Farago