For his book The Historical Atlas of American Crime (Facts on File), Mr. Rosen won the Library Journal "Best Reference Source 2005" award. The award cited it as a "pioneering resource" in which Mr. Rosen "describes how geography, population shift, and new methods of commerce, transportation, and weapons technology have impacted crime" from 1592 to the present. A former New York Times columnist, Mr. Rosen received the personal assistance of President Jimmy Carter for his true crime book Did They Really Do It? (Avalon, 2005). He is the author of many works of true crime, including the classic Lobster Boy. In that case it was Mr. Rosen''s detective work that led to the conviction of the killer. Mr. Rosen''s 2004 memoir/popular history, Cremation in America (Prometheus), also garnered rave reviews.