The Representation of Science and Scientists on Postage Stamps examines how the postal authorities of the world have developed unique techniques to portray science and scientists in order to convey a message behind the stamp issue. It is a multi-disciplinary examination that investigates visual representation, semiotics, science, science history and politics, amongst other issues. The author introduces and describes a technique for looking at how and why images may have been chosen. Is the image a mirror reflecting a known reality or is it a lens to challenge, to prompt further thought or action? He also hypothesises that the Internet created a real change to science communication, influencing the way images of science were used. The stamp message changed from that of pursuing a public understanding approach to an awareness of science with its increasing contextual content.