Simply put, this is the best Christian catechism book I have ever read. It is based on Hebrews 6, in which Paul refers to the "elementary teachings about Christ." What could be more necessary or relevant for a Christian believer to understand as foundational doctrine than those things that the Bible specifically says are "elementary teachings?" Answer: nothing! And Mr. Prince does it amazingly well. I became a fan of Derek Prince about two chapters into this book, and have read nothing of his to change that opinion. He is an awesome writer and apologist for the gospel of Christ.