Watermarks reflect the very stuff of the origin, date, distribution, composition, history and culture of paper-based items. Digital imaging of watermarks releases the research potential as widely as the internet itself. One example is the digital "fingerprinting" of paper in order to enhance the security of items, such as valuable and vulnerable maps. Revealing Watermarks, by means of the case study of one sixteenth century watermark-a crown from the arms of Danzig-illustrates how cultural influences spread and have endured across the centuries, in this case from Sweden to Russia.

Leading figures at the dawn of the sixteenth-century Reformation commonly faced the charge of "judaizing": 72 In His Name concerns the changing views of four such men starting with their kabbalistic treatment of the 72 divine names of angels. Johann Reuchlin, the first of the four men featured in this book, survived the charge; Martin Luther's increasingly anti-semitic stance is contrasted with the opposite movement of the French Franciscan Jean Thenaud whose kabbalistic manuscripts were devoted to Francis I; Philipp Wolff, the fourth, had been born into a Jewish family but his recorded views were decidedly anti-semitic. 72 In His Name also includes evidence that kabbalistic beliefs and practices, such as the service for exorcism recorded by Thenaud, were unwittingly recorded by Christians. Although the book concerns early modern Europe, the religious interactions, the shifting spiritual attitudes, and the shadows cast linger on.