Morris Kline is at New York University (Emeritus).

[Kline] has produced in this enormous book what must be the definitive history of mathematical thought. Clearly written and handsomely produced.... [It makes] this abstract discipline come alive with a sense of organic growth; we see the personalities, the societies, the false starts, and the patient building up of a body of knowledge now so complex that it overwhelms the layman.... For anyone with a background and interest in mathematics it is an important event