A landmark of Enlightenment thought, Hume's An Enquiry Concerning Human Understanding is accompanied here by two shorter works that shed light on it: A Letter from a Gentleman to His Friend in Edinburgh , Hume's response to those accusing him of atheism, of advocating extreme skepticism, and of undermining the foundations of morality; and his Abstract of A Treatise of Human Nature , which anticipates discussions developed in the Enquiry . In his concise Introduction, Eric Steinberg explores the conditions that led Hume to write the Enquiry and the work's important relationship to Book I of Hume's A Treatise of Human Nature .

The history of disease is the history of humankind: an interpretation of the world as seen through the extraordinary impact—political, demographic, ecological, and psychological—of disease on cultures. "A book of the first importance, a truly revolutionary work." — The New Yorker From the conquest of Mexico by smallpox as much as by the Spanish, to the bubonic plague in China, to the typhoid epidemic in Europe, Plagues and Peoples is "a brilliantly conceptualized and challenging achievement" ( Kirkus Reviews) . Upon its original publication, Plagues and Peoples was an immediate critical and popular success, offering a radically new interpretation of world history. With the identification of AIDS in the early 1980s, another chapter was added to this chronicle of events, which William McNeill explores in his introduction to this edition. Thought-provoking, well-researched, and compulsively readable, Plagues and Peoples is essential reading—that rare book that is as fascinating as it is scholarly, as intriguing as it is enlightening.