In the 25 years of its existence, Studies in Spirituality has been an attentive observer of the significant changes that have taken place in the field of spirituality. During this period, research in spirituality shifted not only towards the centre of theological reflection, it has also responded to a culture that sought to go beyond the boundaries of theology, on the one hand, and to the experience of globalisation on the other. In this volume, Rossano Zas Friz De Col S.l., Professor of Spirituality at the Institute of Spirituality of the Pontifical Gregorian University (Rome), presents a list of thirty-one articles previously published in Studies in Spirituality, which, from his perspective, merit reprinting. The reader will find a collection revolving around spiritual transformation as their center. The reprinted articles are preceded by a reflection on twenty-five years of Studies in Spirituality, in which professor Zas Friz decribes how Studies in Spirituality brings spiritual transformation into focus today, and how to understand that transformation in the present globalized world.