covers the basic good news of the gospel in simple but biblical language. It would probably help those who have just come back to the Lord after backsliding. It will remind them again of simple but wonderful biblical truth. Jesus died for sinners.
I have appreciated all of Roy Hession's books that I have read, but I did find this to be the one I gained least from. He mentions at the start that it is based on a series of sermons that he gave, and perhaps that is why. Still worth a read though.