Norman Foster Sketchbooks Volume IV spans five years, 1991– 1995, with a total of 451 drawings representing 77 sketchbooks. The opening year saw the completion of two important works: Stansted, London’s third airport, and Century Tower in Tokyo. Towards the end of 1991, the results of changes made to the practice’s organisational structure became concrete. This was further reflected when in January 1992, its name changed to Sir Norman Foster and Partners, incorporating the title bestowed upon Foster two years previously. By the time of this volume’s close in 1995, the studio was busy with numerous projects around the globe: in Europe, Japan, the United States and, for the first time, in the Middle East.