The curtain wall, a non-bearing wall attached to a building’s structural frame, is a key concept and an indispensable feature of contemporary architecture. Now the development of elastomers has even made facades of pure glass feasible. 20 exemplary facades by Cesar Pelli & Associates are presented in this book, arranged by material - glass, metal, stone. The conception and development of each individual facade solution is unfolded and construction details comprehensively documented in numerous drawings. Examples include the Nakanoshima Mitsui Tower (Osaka), Cheung Kong Center (Hong Kong), BankBoston (Buenos Aires), Mori Tower (Tokyo), Heron Quay 3 (London) and 731 Lexington - Bloomberg Tower (New York). Michael J. Crosbie is an architect, former editor of Progressive Architecture, a regular contributor to Domus, Architectural Record and Landscape Architecture, and author of numerous publications on architecture.