Computer Power and Human Reason by Joseph Weizenbaum
First published in the USA in 1977, this is a book on the impact of computers and the integration of scientific and humanistic thinking. The book is a computer scientist's elucidation of the impact of scientific rationality on man's self-image. Weizenbaum's arguments have added force because they are accompanied by an account of the sources of the power of the computer, the machine that is the very embodiment of scientific rationality.