This book develops the major themes of time series analysis from its beginnings in the early part of the 20th Century through to the present day. This is done by uniquely concentrating on the research of six distinguished British statisticians, Udny Yule, Maurice Kendall, James Durbin, George Box and Gwilym Jenkins, and Clive Granger, all of whose work is characterised by the British traits of pragmatism and the desire to solve practical problems of importance, accompanied by great technical skill and unusual integrity.