Let The Nations Be Glad – John Piper
This book literally changed my life and the course of my ministry. I was one that was just consumed with numbers at times and having the best programs. This book changed me to be one that cared about exalting God first and foremost. Yes a book about missions had this impact on me. I truly believe it can have that some impact on anyone that reads it, and at the same time stir up your love for seeing God exalting by all nations.