What book would you recommend a complete pagan to read that would lead him to the faith?
If he is a man give him the book Hostage to the Devil
by Malachi Martin. I doubt he'll read anything that explains the Faith that you give him. But this book is a different story. If he has the intestinal fortitude, the manliness, to read just a little of it, it will shock him into the reality that there is a spirit world and that we are powerless in it without the true Faith. Most men will never go past the first story in the book as it will scare them to death, though they will not tell you that. You won't get immediate results, but he will never forget it. Someday it will lead him to the only truth, the Catholic Faith lived
. It is rare to find a Catholic today that truly lives the faith."The fear of the Lord is the beginning of wisdom" (Prov 9:10)