This multiauthor book celebrates the bicentenary of the Missionary Oblates of Mary Immaculate (OMI), founded by St. Eugène de Mazenod, and arises from an international conference on French spiritual traditions hosted by the Oblates in San Antonio, Texas, in November 2016. More broadly, this book aims to make available to a wide readership the riches of the important family of French spiritual traditions originating between the seventeenth and nineteenth centuries—not least the emphasis on mission to the poor. French traditions have been greatly underestimated in conventional histories of Christian spirituality, but their spiritual wisdom offers much to today’s believers.