In the 20th century, Switzerland has been subject to manifold architectural developments which have been closely linked to international tendencies. A fundamental goal of this guide, published in a series, is to provide a picture of the different regions and epochs, and also to record the numerous stylistic streams and representations. The guide offers an overview of the most important buildings in 20th-century Switzerland. Arranged by the 26 Swiss cantons and half-cantons, it introduces more than 800 buildings in some 460 articles. The text also includes an article by Roman Hollenstein which presents the most recent developments. The architectural oevres range from Karl moser, Le Corbusier, and the canon of the buildings stylistically related to the Bauhaus by Hans Schmidt or Hannes Meyer, to unconventional figures such as Peter Markli. Without over-emphasizing the present, the Ticino architecture of Mario Botta, Luigi Snozzi, Livio Vacchini, the Swiss-German architects Herzog & de Meuron, Diener & Diener and Peter Zunthor are given ample consideration, as are the movements of the 1980s and 1990s, with buildings by Burkhalter & Sumi, Gigon & Guyer, Devanthery & Lamuniere, among others. The guide includes an extensive addendum with indices of architects, buildings and locations.