With humor and ease, Father Michael Gaitley, MIC, deftly unlocks the one thing, the key to the Church's wisdom, and the greatest mystery of the Catholic faith: the Most Holy Trinity. Far from being a scholarly or academic read, The One Thing is Three makes deep theology accessible to every-day Catholics. What's more, it makes even what's familiar or forgotten appear in a way that's new, exciting, and relevant. Thus, The One Thing is Three brings its readers a unique and powerful experience of the faith. It's the perfect book for the Year of Faith.