Leonard Ravenhill wrote this book on Revival back when no one else was mentioning the subject. Today, there are many books about Revival. I believe Ravenhill's book was the first. This is a personal challenge about personal and corporate Revival. It was written in 1950 but just as timely today. Leonard Ravenhill writes with a sharp pen and goes right to the heart of issues that hinder Revival. Over 500,000 copies have been printed.