Lawson's Politica is a systematic treatise on politics in church and state, and is arguably the most significant work of political theory to have been printed during the Restoration crisis of 1659–60. The work was widely discussed during the seventeenth century and its conceptual vocabulary applied in discussions of the Revolution of 1688–9, when it was also posthumously republished. Despite Lawson's fame, however, his work fell into relative obscurity during the eighteenth century but it has recently been the subject of renewed scholarly interest. Politica has been reassessed as both historically and theoretically significant, and Lawson's contextual and interpretative importance emphasised, as a writer who enriches our understanding of Hobbes and Locke. This new modern edition is the first to be based on, and to correct, the rare and badly printed edition of 1660 and the partially corrected edition of 1689. Containing full scholarly apparatus, it is designed to make this significant work accessible to students as well as specialists through a substantial introduction and notes, contextual material and bibliographical guide.