Types of Angels
- A celestial Hierarchy - by Pat Bartos
- Angels - by Fr. John Trigilio
- Angel - by Hugh Pope - Catholic Encyclopedia
- What is a Seraph?
- How can an angel also be a saint?
- Catholic Encyclopedia: Guardian Angels
- Catholic Encyclopedia: Cherubim
- Catholic Encyclopedia: Demons
- Angels of the Ne w Age Kind - by Mary Drahos
- Our Guardian Angels - by Rev. Alfred Boeddeker, O.F.M.
- Our Guardian Angels by Fr. Joseph Ventura, C.P.
- We All Have Our Own Special Guardian Angel by Fr. Hardon
- What are the rankings of angels?