Thomas Hobbes (1588-1679) is best known for his development of the concept of sovereignty, which was treated most clearly in his great work, Leviathan. Whilst Hobbes was not the first theorist of sovereignty, he remains perhaps the most thorough exponent of the concept. His accounts of morality and religion, as well as of government, are set out in a way that precludes legitimate challenge to the sovereign's authority: and the soovereign, whether monarchical or republican or parliamentary, was taken by Hobbes to be fundamental to civil life. Much of the literature on Hobbes has been devoted to his work on sovereignty. However, this does not exhaust the interest of Hobbes' thought, and recent scholars have also investigated such topics as his conception of historiography, his natural philosophy and his account of religion, and considered how these relate to his political thought. The articles selected in these three volumes reflect these concerns and offer an exploration of Hobbes' political philosophy.