Stephan B. Poulter, PhD, Prometheus Books (IMAGE) Prometheus Books Caption Stephan B. Poulter, Ph.D., is a book author. Credit Prometheus Books Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.