For many, eco skyscrapers are synonymous with Ken Yeang. In more than three decades of practice, Ken Yeang has almost single-handedly pioneered and developed this building genre. This book presents Ken Yeang's work on the design of ecologically responsive skyscrapers, and includes his essay on applying green-design principles to the skyscraper typology, as well as a preface by Steve Featherstone, an introduction by David Scott (Chairman of The Council on Tall Buildings and Urban Habitat) and a critique by Professor Ivor Richards.Ken Yeang makes it clear at the outset that the skyscraper building type is probably the most ecologically unfriendly of all building types, but states that until an economically viable alternative is identified, it is necessary to make them as humane and as sustainable as possible.Each project is presented together with data on its climatic location, the local vegetation, plot ratio, net and gross areas. The book is invaluable to those seeking to design green skyscrapers.