Harold A. Linstone received his doctorate in mathematics from the University of Southern California. Linstone is University Professor Emeritus of Systems Science at Portland State University and editor-in-chief of Technological Forecasting and Social Change. Author and co-author of several other books in the field, he has 20 years of industrial experience at Hughes Aircraft Company and Lockheed Aircraft Corporation. Dr. Linstone has also served as visiting Scientist at the International Institute for Applied Systems Analysis in Austria and Visiting Professor at the Universitites of Rome, Wasington, and Kiel.