The field of premodern environmental history (the study of the complex and ever-changing interrelationship between human beings and the world around them prior to the Industrial Revolution) has grown vigorously over the past two decades, in no small part due to the energy and expertise of Richard C. Hoffmann (York University, Canada). In this collection, historians of medieval and early modern Europe and social scientists with a sensitivity to the use of historical information present their current research in honor of Richard C. Hoffmann's retirement from teaching. The result is a panoramic and dynamic view of the state of the field of premodern environmental history by leading practitioners. The papers are organized under the broad themes of "Premodern People and the Natural World" and "Aquatic Ecosystems and Human Economies". Contributors are Richard W. Unger, Paolo Squatriti, William Chester Jordan, Petra J.E.M. van Dam, Verena Winiwarter, Maryanne Kowaleski, Constance H. Berman, Pierre Claude Reynard, Wim Van Neer, and Anton Ervynck.