Hagiographical studies have seen significant advances in Franciscan scholarship over the last half a century with new critical editions of central texts being prepared. The fruits of this research have been made available in English translations, from the Omnibus of the Sources for the Life of St Francis to the publication of Francis of Assisi: Early Documents in three volumes with an excellent index at the turn of the new millennium. The examination of the life of Francis of Assisi is now gravitating towards liturgical texts in order to gauge the image of the saint projected during the sacred liturgy in the Mass and the Divine Office. There is a growing realization that these liturgical texts did much to condition the friars' perception of the life and apostolate of their founder. The comparative neglect of the liturgical sources is now being redressed by a team of international scholars. This volume is comprised of four substantial chapters: first, a lengthy introduction, secondly, the foundational texts from the Franciscan Liturgy, thirdly, the Liturgical Legends of the order of Minor Brothers and fourthly the Liturgy of St Francis outside the order of Friars Minor. The first chapter, for instance, consists of three sections dealing with the contributions made to the recent research by Professors Jacques Dalarun, Timothy Johnson and Marco Bartoli. Professor Dalarun's indefatigable search for the earliest witnesses to the life of Francis of Assisi through both hagiographical and liturgical texts requires no introduction. His exciting discovery, Thome Celanensis Vita beati patris nostri Francisci. Présentation et édition critique, was published by Analecta Bollandiana in 2015 and has since been translated into various languages. He summarises the quest for the historical Francis, the Francis of history, and from intuition to publication. This survey marks the contribution of Fr Luke Wadding's edition of the writings of Francis of Assisi in 1623 and the enduring legacy of the scholarship of Paul Sabatier. Plans for the publication of volumes based on this research are explained along with the incorporation of Professor Filippo Sedda, who was already working on early breviaries from inside and outside the order and publishing the fruits of his research. Much of this scholarship is contained in his Franciscus Liturgicus: editio fontium saeculi XIII, a text which was published at Padua in 2015 in conjunction with Professor Dalarun.