A very worthwhile book. All of these books in the Puritan challenge books for 2008 are not light reading. They are very dense and packed in every sentence with meaning and much thought. I am amazed at the Biblical literacy of these men who wrote these books, in the days before exhaustive concordances and dictionaries and "look up tools" such as we have now. They really read, studied, and knew their Bibles. This set of sermons goes in a very logical way to address all aspects of a believer's struggles. Satan's devices are mostly in the area of doubt... doubt about why I suffer, doubt about whether I am truly saved, doubt about how could I do X if I really am a believer so maybe I am not?... and on and on. Also in keeping you from reading and studying God's word and thus "seeing the light that tend eminently to shake and break his (Satan's) kingdom of darkness". Read the book, it will strengthen your walk with the Lord and help you indeed have remedies against Satan's devices.