Surely one of the best theologians alive today. Piper has hit homers with Desiring God, Don't Waste your life, God is the gospel, and most of his books. Piper also has some gospel tracts that I sometimes use to mail. Piper is rich, deep, and clear in his writings. Some may disagree with Pipers music, but I think his music is beautiful as I love contemporary. I recommend all believers read Desiring God. If you appreciate Piper please post.