The advancement of the tall building began during the latter part of the 19th century when the business corporation emerged as the dominant commercial institution. By the 20th century a pronounced split had occurred between production and administrative facilities with factories relegated to the suburbs as the skyscraper office became the flagship of major corporations. Since its invention, there have been many advances in skyscraper design such as those enabling their construction to greater heights through high-strength concrete, or in creating more electronically-responsive systems. This work provides a study of this building type, discussing environmental systems, the superstructure and foundations, the changing nature of work and work-place, and other topics. 22 projects are discussed in detail with secondary texts and numerous diagrams providing supplementary information relating to the main text.