The Church: The living body of Christ
Hierarchy, institution, authority, Bride of Christ, Christ as the head, and how we -- as members -- participate in the Body

-- Dr. Hahn’s Books:
Reasons To Believe (Foundational, Focus on second half), First Comes Love, Rome Sweet Home

-- Dr. Hahn's Audio:
The Eucharist Source & Summit, God the Father Calls His Children, The Four Marks of the Church, The Rise and fall of the Old Testament Church, The Spirit of Scripture, The Church as Our One True Home, The Church as The Family of God,

-- Dr. Hahn's DVDs:
The Splendor of the Church

-- Additional Resources:
Articles: The Church is Apostolic, The Church is Catholic, The Church is Holy, The Church is One, The Splendor of the Church, That They May All Be One: The Difference The Church Makes, Without the Church There is No Salvation

Books: The Resilient Church: The Glory, the Shame, & the Hope for Tomorrow by Mike Aquilina, Pilgrim Fellowship Of Faith: The Church As Communion by Joseph Cardinal Ratzinger, The Word, Church And Sacrament: In Protestantism And Catholicism by Louis Bouyer