Archbishop Fulton Sheen wrote more than 60 books.
The first Sheen book I ever read was Life of Christ, but I have to say my favorite is This is the Holy Land, first published in 1961 and covers the trip he took to the Holy Land with several nephews. It's full of photos of Sheen in various Holy Land locations and his reflections. He writes about that book a bit in Treasure in Clay.
What is your favorite Sheen book and why?