I have this in paper back. Went to FedEx and had them spiral bind it. This is a fantastic book on the Holy Spirit. Dr. Pettegrew takes a very careful approach, in an effort to draw "out of Scripture" the truth of this often avoided but very important topic. As John MacArthur says in the forward "Not every reader will agree with all of Dr. Pettegrew's positions, but he never fails to give the biblical basis for his views." I really want this digital copy. It is so much easier to take notes onto (margins are always too small on paper books) and using my Logos app where I have my Bible and other resources at my fingertips when studying or teaching Sunday School is very convenient. I hope this get's funded! P.S. I am not a serious theological student--never been to seminary. Understanding the Bible and how to properly interpret what I read (the best I can in my lay-person's understanding), however, is important to me. Because God is everything to me and His word everything to me.