Book excerpt: The Thirty Pieces of Silver: Coin Relics in Medieval and Modern Europe discusses many interconnected topics relating to the most perfidious monetary transaction in history: the betrayal of Jesus by Judas for thirty pieces of silver. According to medieval legend, these coins had existed since the time of Abraham’s father and had been used in many transactions recorded in the Bible. This book documents fifty specimens of coins which were venerated as holy relics in medieval and modern churches and monasteries of Europe, from Valencia to Uppsala. Most of these relics are ancient Greek silver coins in origin mounted in precious reliquaries or used for the distribution of their wax imprints believed to have healing powers. Drawing from a wide range of historical sources, from hagiography to numismatics, this book will appeal to students and academics researching Late Antique, Medieval, and Early Modern History, Theology, as well as all those interested in the function of relics throughout Christendom. The Thirty Pieces of Silver is a study that invites meditation on the highly symbolic and powerful role of money through coins which were the price, value, and measure of Christ and which, despite being the most abject objects, managed to become relics.