Thomas Izbicki received a doctorate in medieval history at Cornell University (1973). He became an academic librarian in 1986. While serving as a librarian at Wichita State University, Johns Hopkins University and Rutgers University, he pursued research on the medieval Church, including canon law. His publications focus on Pius II, Juan de Torquemada OP, Nicholas of Cusa and the sacraments in canon law. Dr Izbicki's most recent book is Religion, Power, and Resistance from the Eleventh to the Sixteenth Centuries: Playing the Heresy Card, edited with Karen Bollermann and Cary J. Niederman (2014).
'The influence, construction, and use of medieval canon law is richly illuminated through such a focused study.' Kriston R. Rennie, Renaissance Quarterly 'Izbicki begins with an indispensible guide to the canon lawyers themselves. The reader will find herself drawn back to this useful reference often as she gets lost among the thicket of references necessary to the field. ... The material that Izbicki brings to light in this book offers a host of valuable information on the everyday devotional life of medieval Christians as they celebrated the central ritual of their religion. Any scholar of the great medieval drama will find this book an invaluable source for uncovering the rich religious life of a millennium of western civilisation.' Gary Macy, Journal of Ecclesiastical History