Between 1554 and 1570, the Genevan printer Jean Crespin compiled seven French-language editions of his martyrology. In The Construction of Reformed Identity in Jean Crespin's Livre des Martyrs, Jameson Tucker explores how this martyrology helped to shape a distinct Reformed identity for its Protestant readership, with a particular interest in the stranger groups that Crespin included within his Livre des Martyrs. By comparing each edition of the Livre des Martyrs, this book examines Crespin's editorial processes and considers the impact that he intended his work to have on his readers. Through this, it provides a window into the Reformed Church and its members during the outbreak of the French Wars of Religion. This is the first volume to comparatively study all seven French-language editions of Crespin's Livre des Martyrs and will be essential reading for all scholars of the Reformation and early modern France.