Two volumes of the Imagine series are planned annually. Façades and Deflateables are available. Performance Driven Envelopes and Rapids will appear at the beginning of 2009.The impact of climate design on architecture is obvious. But design trends are currently attempting to implement climate design merely as an additional item in architectonic planning. The alternative is to start with an architectural attitude that will produce a comprehensively integrated design. To achieve this, design teams will have to accept an equality of importance, as well as understanding the demands of all relevant themes. This Imagine book is related to a series of lectures at the TU Delft and a workshop in which international professionals and students from various disciplines participated with the intention of creating an ambience deliberately oriented toward the generation of an integrated, performance-driven envelope.