I bought my copy from Ref. Heritage books but you can get it cheaper at Ligonier Ministreis. When I am done I think this will rank as the biggest book I would have ever read when I'm done (Bible is smaller I think in size; and I think edward's works as 2 volumes and edwards is smaller). I am just around p. 200 but I would agree with J.I. Packer and many others in saying that this is the greatest book on practical divinity ever written in the English Language.