The Eco-Self in Early Modern English Literature tracks an important shift in early modern conceptions of selfhood, arguing that the period hosted the birth of a new subset of the human, the eco-self, which melds a deeply introspective turn with an abiding sense of humans' embedment in the world. A confluence of cultural factors produced the relevant changes. Of paramount significance was the rapid spread of literacy in England and across Europe: reading transformed the relationship between self and world, retooled moral reasoning, and even altered human anatomy. This book pursues the salutary possibilities, including the ecological benefits, of this redesigned self by advancing fresh readings of texts by William Shakespeare, Christopher Marlowe, John Webster, and Margaret Cavendish. The eco-self offers certain refinements to ecological theory by renewing appreciation for the rational, deliberative functions that distinguish humans from other species.