The book has four parts. Part 1 deals with God's solution to our problem. It assumes the existence of God, that Jesus Christ is God's unique Son, and that the Bible gives accurate information about God.
Part 2 is written for those who are uncertain about God's existence and whether Jesus is God's Son. It also sets out to show that the New Testament histories about Jesus are reliable and that the Bible does give us accurate information about God.
Part 3 deals with the serious responsibility of responding to God in his way rather than your own way.
Part 4 sets out in detail what we need to do to become Christians, and how we can be sure we are Christians.