Here is presented for the first time an extraordinary medieval text, the first Old French Vie des Pères. The Vie des Pères is in fact a collective text comprising three branches and, at its fullest, over seventy individually enclosed pious tales / miracles. The first Vie – the first forty-one or -two tales – dates from the first third of the thirteenth century. It is a vitally significant but hitherto neglected part of the Old French canon. Indeed, in his preface to this volume Michel Zink, one of the most respected medievalists of his generation, notes that the qualities of the Vie des Pèrs ‘devraient valoir à son auteur une place au voisinage de celle qu’occupent pour nous celui de la Chanson de Roland ou Chrétien de Troyes.’ The tales are remarkably well written and offer fascinating glimpses of thirteenth-century life and spirituality. They were also extremely popular in Medieval France. Sharing close links with a number of traditions – fabliaux, Saints’ Lives, Miracles of the Virgin, Romance, Sermons – the Vie des Pères has value for those interested in many branches of vernacular literature, codicology, lexicography, art history, theology and philology. Tales of Vice and Virtue – the first sustained analysis of the entire first Vie des Pères to be published – is a groundbreaking book providing readers new to the text with detailed commentaries, offering abundant intertextual information for romance philologists, and suggesting many new areas for further research.