Donald Knuth is an extraordinary man. As well as inventing 'Literate Programming' and writing the most important textbook on programming algorithms, he is also famous for designing and programming one of the most widely-used digital typesetting systems ever, even designing the fonts that went with it. He also pioneered the use of 'Open-source' software. Knuth is a man of engaging charm and enthusiasms who combines a knowledge of history, music, art and mathematics with a unique insight into the art of computer programming.