I don’t know as he would have bothered reading them. I have found that most that deny God have never read anything about Him. They don’t want to either. They are comfortable in their ignorance and, sometimes, hatred. There’s a certain amount of selfishness in it too. If they don’t have to live for God, they can live for themselves.
Sometimes all we can do is plant seeds.
I wish someone would have shared either of those books with me, a long time ago.