Prier 15 jours avec François d'Assise is a devotional guide that invites readers to spend fifteen days reflecting on the spirituality and teachings of Saint Francis of Assisi. Authored by Thaddée Matura, a scholar of Franciscan thought, the book offers daily prayers and meditations along with short readings drawn from Francis’s writings and legacy. Each day focuses on a theme such as poverty, peace, creation, and joy, encouraging a deeper personal connection with the Franciscan vision of Gospel life. Originally published in French by Nouvelle Cité in 2001, the paperback edition presents the text in an accessible format suitable for individual or group use. The work continues to be valued by those seeking a simple, structured path to prayer inspired by one of Christianity’s most beloved saints.