Absolutely amazing book that will revolutionize your prayer life. I love how they take prayer from being "girly-girly" like "Oh God, please bless my family, and my day and bring peace to the earth." And they make it knock down, drag out, roll in the mud, wrestling prayer that will rattle the spiritual world and bring about change. A departure from the books I've read by them on relationships and love and giving God control of your life. But something every Christian should be reading.