The Edwards book deals with the 70 resolutions written by Edwards when he was 18-19. It is amazing to read the depth of his devotion to Christ and his exalting of Him even at the young age of 18. Lawson writes in such a way that while we may be in awe of Edwards we can see how his actions are what we should aspire to as well. Edwards lets us see what being Christ focused is all about and that it is not simply a matter of claiming a desire to exalt Christ but actively, by the power of God, seeking to exalt Christ in all we do.
I would pray as you read these books you would be reminded of what it is to be focused on Christ and they would inspire you to seek after Him as both these men did. Books such as these are not to replace scripture but they can give us insight into how God has worked through His word in others and we can pray He does the same with us.