In The Puritan Cosmopolis, Nan Goodman demonstrates how the Puritans were far from an insular coterie that ignored the larger global community. Drawing on letters, diaries, political pamphlets, poetry, and other cultural materials, The Puritan Cosmopolis demonstrates how the Puritan population increasingly saw themselves as global citizens. Goodman approaches cosmopolitanism as a subjective experience-arguing that the Puritans developed a sense of belonging to the world and dependence on it in the later decades of the seventeenth century. In particular, she posits that theories about the law of nations (rather than just experiences of globalization through trade) enabled the Puritans to redefine themselves and their relation to the world through a variety of literary sources. Uniquely, Goodman argues for the importance of theorists like Gentili, Grotius, Pufendorf, and Selden to the development of New England Puritanism. After using the first chapter to explain the law of nations, Goodman pursues that claim through chapters on the Puritan covenant, Puritan ideas of the millennium, Puritan ideas of evidence, and Puritan approaches to pietism. In examining the law and this literature, The Puritan Cosmopolis uncovers Puritans, who were experimenting with concepts of extended obligation, re-conceptualizing war, contemplating new ways of cultivating peace, and rewriting the rules for being Puritan by internalizing legal theories that pertained to the world writ large.