Jay Rubenstein studied medieval history at the University of Oxford and the University of California at Berkeley. Currently he teaches history at the University of New Mexico.

• List of Diagrams and figures Preface Introduction Part I. Psychology Chapter 1. You Man Guibert Chapter 2. Psychological Speculations Chapter 3. The psychology Behind Guibert's Memoirs Part II. Theology Chapter 4. Abbot and Historian Chapter 5. Theological Disputes Chapter 6. The Eucharistic Disaster Part III. Understanding Chapter 7. Contemplative Lost Conclusion Appendix. Two Questions about Manuscripts Bibliography Diagrams and Figures