IBM has been the subject of considerable study by historians, economists, business management professors, and journalists. This essay surveys the various writings on the company, placing their contributions in a roughly chronological account of the company's history, from its early days in tabulating through to its dominance of global markets in computing. The essay includes well-known studies of IBM in addition to more obscure accounts. It emphasizes the need to consider the company's culture along with its technological and managerial changes in order to grasp the reasons for its longevity.
