I believe Les is an excellent Bible teacher and very knowledgeable of the old and new testament. I attempt to watch his program frequently and follow along in the book he is teaching. I have learned a great deal by listening and watching his program. However, the study of the bible on my own is imperative. I seem to learn more and have a better understanding of the scriptures when I add my own studying along with Les' teaching. He is very thorough in his cross-referencing of the scriptures.
