What was De Stijl? This fascinating survey, the most comphrehensive book to be published on the subject, seeks to unravel that question and to consider how the theory of De Stijl matched its actual practice. There are various answers: De Stijl was a magazine; De Stijl was an art movement; and De Stijl was an idea, a world view, and an approach to life. And from the 1930s onwards, De Stijl was recognised internationally as the most important contribution to modern culture made by The Netherlands. It is associated with such instantly recognisable objects as the radical geometric abstract paintings of Piet Mondrian, with their perpendicular relationships and primary colours; the dynamic architectural drawings of Theo van Doesburg, which explode the conventional box-like structure of a building and show it as interpenetrating spaces unfolding in time; and the experimental furniture of Gerrit Rietveld, who took the most familiar of objects, the armchair, and reconfigured it as