At the Venice Biennale 2003, Sierra had the Spanish pavilion walled in and guarded by security personnel, who only allowed Spanish citizens with a valid passport to enter. Since then, Sierra has been one of the most frequently discussed contemporary artists in the world. His most recent project; the installation `House in mud' for the Kestnergessellschaft, links the institutions history with the history of the city of Hanover. Using the origins of Lake Masch - which was created in the middle of the city as part of a government employment program in the 1930's - Sierra addresses the question of what work is really worth, a recurring theme in his work which is especially pertinent today.

Edited by Anselm Franke, Christoph Keller. Text by Hilke Wagner. Interview by Sharon Ben-Joseph.

Text by Veit Gorner, Frank-Thorsten Moll, Hilke Wagner.

Introduction by Hilke Wagner. Text by Iara Boubnova, Dessislava Dimova.

Jan Köchermann (*1967 in Lüdenscheid) has been dealing with the shaft as a sculptural element since 1996, in recent years producing a variety of large installations in public space. He stages rifts in reality and plays with the ways viewers conventionally experience them, leading to new, unexpected spaces or spatial situations: whether it be the third-floor gallery on Admiralitätstrasse flooded with water and with a floating high-rise building, or the reproduction of a twenty-six-meter-long bicycle tunnel, at the end of which is a sign that suggests to the viewer that he is actually on the Aussenalster in Hamburg and not in the art capital of Düsseldorf. This monograph embraces Köchermann's entire oeuvre. Besides the large installations, it also examines his light sculptures, model-like interiors with film projections, and his puzzling spatial productions.

With small interventions, Tue Greenfort, who has recently become well-known through numerous international exhibitions, often refers to very trivial and therefore frequently overlooked events in public and private space. Greenfort is interested in ecological and economic issues: against the background of global interrelations, he examines how people deal with the protection of the environment and species, with resources and sustainability, in view of the scarcity of raw materials. English text.

At first glance, Marcel Dzama's delicate works strike one as being almost innocent, yet a grotesque and occasionally gruesome universe opens up behind this façade Marcel Dzama's 2011 films A Game of Chess and Death Disco Dancerevealed fascinating new developments in the artist's iconography and range of media--perhaps most notably in his use of puppets and dioramas, which added more playful qualities to his imagery of conflict and terror, and underscored his dialogue with modernist artists such as Duchamp, Man Ray and Oskar Schlemmer. This volume, published for Dzama's exhibitions at Sies + Höke and Kunstverein Braunschweig, reproduces a wealth of new work, including images, stage sets, puppets, dioramas and sculptures from the films; a suite of ten drawings called Forgotten Terrorists(2008-2011), that draw on a photograph of the Palestinian terrorist and hijacker Leila Khaled; and other recent drawings, such as "Pepper Spray Saturday" (2011), an interpretation of the already iconic image of policeman John Pike pepper spraying Occupy protesters at University of California Davis. The protagonists in Dzama's charmingly but horrifically choreographed pictorial world, which appears to be devoted to the abysmal depths of humanity, are wearing masks, uniforms, bearing arms, dancing, making love, or in agony. Dzama's uncanny dream world of the unconscious seldom develops a stringent narrative but creates a metaphorical landscape that invokes a whole range of associations and interpretations. In doing so, they absorb a wide spectrum of influences from older and more recent art history: Francisco de Goya, Dada, in particular Marcel Duchamp as well as Oskar Schlemmer's Triadic Ballet. The pictorial aesthetics of the 1920s is typical of Dzama's oeuvre, diversely augmented by references to literature, psychology, cinematic history, and current political issues.