What is popular is never a measure of quality or truth. What is popular is always changing and passing away. John Wesley once said, “All that is true is not new, and all that is new is not true”. I think he was right. Truth is eternal because God is eternal. True Christianity is today what it was in the 1st century. It does not change because Christ does not change.
As a pastor I am concerned that people read what is good, what builds their faith and knowledge of Christ. I stock books based on that goal.