Thomas Hobbes is widely considered to be one of the founders of modern political philosophy. Although best known for his seminal book Leviathan, Hobbes produced a wide range of writings, from translations of texts by Homer and Thucydides, to interpretations of Biblical books, to works devoted to geometry, optics, morality, and religion. Hobbes viewed himself as a systematic philosopher--presenting a unified method for theoretical and practical science. In this new Companion, a panel of leading scholars provides close textual engagement with the thought of Thomas Hobbes while philosophically probing his viewpoints concerning natural philosophy, mathematics, human nature, civil philosophy, religion, and more. This skillfully curated collection of essays presents readers with a number of entry points into Hobbes's thought and across his interconnected system of philosophy. Throughout the text, readers gain an appreciation of the unity and diversity of Hobbes's philosophy as they explore the reception of Hobbes by thinkers such as René Descartes, Margaret Cavendish, David Hume, and Immanuel Kant. A Companion to Hobbes is an invaluable resource for all scholars and advanced students of early modern thought seeking to investigate the connecting points between Hobbes's metaphysics, epistemology, mathematics, natural philosophy, morality, and civil philosophy.