The Spirit of ACE: Celebrating 15 Years is a collection of essays written by teachers and administrators of the Alliance for Catholic Education Master of Education Program at the University of Notre Dame. Focusing on Catholic education through the lenses of teaching, community, and spirituality, these reflections provide insight into teaching as vocation and ministry, the value of community in the educational experience, and personal and spiritual growth through service as a Catholic school teacher. Contributors include graduates reflecting on past service and its impact on their lives today as well as teachers currently serving in Catholic schools across the United States. The Spirit of ACE provides a window into the daily challenges, successes, and moments of grace common to all teachers.