Nonprofit gallery Calvert 22 is considered one of the top London galleries dealing with art from Russia and Eastern Europe. It was founded in 2009 by Nonna Materkova. Among the others it exhibited works of Alexander Brodsky and Olga Chernysheva. The exhibitions, occupying two floors of a former warehouse, are attractive not only because of the works displayed, but also due to unconventional solutions by the curators. Since 2012 the gallery publishes its own magazine, The Calvert Journal, covering news on visual art in Eastern Europe.