The Oxford Encyclopedia of Martin Luther is a three-volume set that is part of the Oxford Research Encyclopedia of Religion. Though entries are listed alphabetically, the editors have organized the volume into four major sections: the context shaping Luther's social and intellectual world, the genres in which he worked, his theological and ethical writings, and a global history of Luther's reception. The articles, which summarize research and offer an agenda for future scholarship, are longer than traditional encyclopedia essays. As such, this collection does work at significant depth on certain questions and issues related to Luther. For example, there are three related articles on Luther and Judaism: “Anti-Judaism and Anti-Semitism,” “Christian Hebraism,” and “Jews and Judaism.” On the other hand, Reformation scholars or early modern historians of religion will find surprising absences. There are no separate entries on key sixteenth-century Lutheran reformers such as Flacius Illyricus and Johannes Brenz or important rivals including Karlstadt and Müntzer, no independent coverage of Wittenberg, Saxony, or the Empire, and no articles on printing or Lutheranism in an urban environment. For scholars looking for that type of coverage, The Oxford Encyclopedia of the Reformation (Hillebrand, ed., [Oxford, 1996]) remains the better option. Though this three-volume compilation is an interdisciplinary enterprise, its editorial board was not. All seven of its editors are members of religion departments, theological faculties, or divinity schools. Coverage, not surprisingly, tilts in that direction. At the same time, the collection should be seen more as a compendium of review essays than a compilation of the shorter traditional reference entries.