God's grace toward sinners is the unmistakable theme in this book. Robert Flockhart tells us how that he was in the very depths of sin when the Lord rescued him. Certainly, we see that where much love was given, much was returned. This "street preacher" loved Jesus Christ with a zeal that is seldom seen today. Read of his dedication, his persecution, his great conviction and repentance, and his perseverance. This book is written in a very simple style that a reader of any age could enjoy. If you feel that you are "the chief of sinners," this book will be an encouragement.