I own the print edition and it is a highly edifying and encouraging book. If I had to pick one other book other than the Bible to have for the rest of my life, it would be this one. It is full of Scripture, excellent quotes and truths mined from the history of the church, along with regular challenges to apply such truths. I cannot recommend this book enough, it falls in line with Ryle's "Holiness" and Owen's "Moritification of Sin", yet with it being written today and for today, it is more readable, and perhaps, more relevant. We have this book in our church's library and many members have bought the book and have been blessed it by immensely. A Logos edition would be great to have for the many Scripture references that are used.