ABY M. WARBURG (1866–1929) IS RECOGNIZED NOT ONLY AS ONE OF THE CENTURY'S PREEMINENT ART AND RENAISSANCE HISTORIANS BUT ALSO AS A FOUNDER OF TWENTIETH-CENTURY METHODS IN ICONOLOGY AND CULTURAL STUDIES IN GENERAL. Warburg's 1923 lecture, first published in German in 1988 and now available in the first complete English translation, offers at once a window on his career, a formative statement of his cultural history of modernity, and a document in the ethnography of the American Southwest. This edition includes thirty-nine photographs, many of them originally presented as slides with the speech, and a rich interpretive essay by the translator.