Book excerpt: The Companion to John Wyclif contains eight substantial essays covering the central aspects of John Wyclif's life and thought. The volume's authors have drawn on an extensive amount of primary material, as well as the most recent secondary sources, so as to present a comprehensive picture of Wyclif in his times. Topics covered include a detailed life and career of Wyclif, and close analyses of his logic and metaphysics; doctrine of the Trinity and Christology; political views; Christian life and piety; sacraments; the Bible; and an examination of his medieval opponents. Experts and students alike will profit from these in-depth studies all of which provide a view of Wyclif in his late medieval context. For those not already familiar with Wyclif this volume will serve as an excellent introduction; and those with greater expertise will find fresh appraisals which may, in turn, lead to further research.