This volume comprises a collection of manuscripts by or relating to T.R. Malthus—recently discovered and previously unpublished—consisting of correspondence, sermons, essays and lecture notes on political economy and history. The manuscripts provide insights into Malthus' personal life—especially his relationships with his parents and his tutors, and also suggest hitherto unknown influences on his intellectual development. They represent a remarkable discovery, more than 150 years after Malthus' death.