Sixteenth century philosophy was a unique synthesis of several philosophical frameworks, a blend of old and new, including but not limited to Scholasticism, Humanism, Neo-Thomism, Aristotelianism, and Stoicism. Unlike most overviews of this period, The Routledge Companion to Sixteenth Century Philosophy does not simplify this colorful era by applying some traditional dichotomies, such as the misleading line once drawn between scholasticism and humanism. Instead, the Companion closely covers an astonishingly diverse set of topics: philosophical methodologies of the time, the importance of the discovery of the new world, the rise of classical scholarship, trends in logic and logical theory, Nominalism, Averroism, the Jesuits, the Reformation, Neo-stoicism, the soul’s immortality, skepticism, the philosophies of language and science and politics, cosmology, the nature of the understanding, causality, ethics, freedom of the will, natural law, the emergence of the individual in society, the nature of wisdom, and the love of god. Throughout, the Companion seeks not to compartmentalize these philosophical matters, but instead to show that close attention paid to their continuity may help reveal both the diversity and the profound coherence of the philosophies that emerged in the sixteenth century. The Companion’s 27 chapters are published here for the first time, and written by an international team of scholars, and accessible for both students and researchers.