This collection of essays, the published papers of a conference held in Paris in 2006, brings together the various aspects of Stephen Langton's scholarship; the three epithets of the title, preacher, exegete and theologian, provide the theme for three sections of the book, with a fourth on Langton's historical role. Although Langton was the most prolific and widely read exegete and preacher of his generation, a bewildering manuscript tradition crowded with reportationes and revisions has condemned his work to remain largely unpublished. For anyone braving these obstacles, this book will be indispensable: each genre is provided with key articles providing valuable insights into his methods and manuscript tradition, which often review and update the pioneering work of Smalley and Lacombe and the repertoria of Stegmüller and Schneyer. Gilbert Dahan writes on Langton's use of the glossed Bible and the different senses of Scripture, Nicole Bériou gives a summary of scholarship on the sermons since Phyllis Roberts, Claire Angotti reviews Langton's Sentence Commentary and Riccardo Quinto describes the manuscript tradition of the Quaestiones theologiae. These more general articles are supplemented by case studies of books and themes. The most original and interesting contributions explore how Langton's thought travelled across the genres and into his political interventions. The two opening articles by John Baldwin and Nicholas Vincent provide fascinating accounts of the way in which ideas permeated Langton's career as archbishop, with Baldwin using his concepts of kingship and the importance of written law drawn from Bible commentaries and sermons, and Vincent, a discussion of Langton's use of Thomas Becket's legacy to improve his own marginalised political standing. Also informative are Louis-Jacques Bataillon's comparison of Langton's comments on the minor prophets in commentaries and sermons, Lauge O. Nielsen's account of Langton's quaestio on the Ten Commandments, and Emmanuel Bain on the commentary on the Proverbs. All three compare Langton's treatment of a theme in different contexts, an exercise which highlights the complexity of his work. It emerges that Langton tended to alter and revise his readings of a given passage across his many genres and redactions. These findings are typical of the book's tenor. Whereas Beryl Smalley and her generation first identified a few organising principles to Langton's output, including a chronology, an exegetical method and explanations for the multiplicity of redactions, as often as not the contributors to this volume disrupt these schemes, identifying further intricacies, and pointing to many instances where Langton defies expectation. This is an impressive collection for the range of material it covers, and the success with which its contributors begin to consider Langton's writings as a whole.