Lisa Fagin Davis offers the first photographic reconstruction of the extant leaves of the Gottschalk Antiphonary, an important twelfth-century manuscript from the Austrian monastery in Lambach. The Gottschalk Antiphonary, which was dismantled for binding scrap in the fifteenth century, is examined from various angles - art historical, liturgical, and musical - and its contributions to the study of medieval drama and the long-term ramifications of the investiture controversy are explored. The manuscript is studied within the historical and political context within which it was created, in order to better understand the decisions which went into its production. In addition to a black-and-white facsimile of the recovered portion of the manuscript, the book includes a survey of the twelfth-century Lambach scriptorium and a detailed codicological reconstruction of the codex. Appendices of charts and tables demonstrate how the Gottschalk Antiphonary compares to other liturgical manuscripts from the same period.