Dr. Denis McNamara of the Liturgical Institute at Mundelein Seminary in Illinois is an expert on ecclesiastical architecture and is a major figure in today’s liturgical renewal, consulting on many church renovation projects. He’s the author of Catholic Church Architecture and the Spirit of the Liturgy as well as How to Read Churches: A Crash Course in Ecclesiastical Architecture . He’s put together a series of ten videos of roughly seven minutes each explaining what ecclesiastical architecture is and should be. As Catholics begin the Year of Faith and celebrate the fiftieth anniversary of the Second Vatican Council, it’s important to learn about good liturgy and architecture for the sake of the new evangelization. I’ve gathered them all here for you here at the Christian Leadership Center .