Seymour I Schwartz, MD (Rochester, NY), a world-renowned surgeon, is the author of Schwartz's Principles of Surgery, which in its seven editions and translations has sold more than 500,000 copies. Dr. Schwartz is equally renowned as a cartographic historian and is the author of many books on historical maps, including Putting "America" on the Map: The Story of the Most Important Graphic Document in the History of the United States.