In his most powerful book since What's So 

What is prayer? How does ot work? And more importantly, does it work? 

Written by one of the most significant Christian thinkers of our generation, Prayer: Does It Make Any Difference? explores the questions surrounding prayer that many of us wonder but few of us know how to express. Above all, this book teaches us how to pray to a God who sees what lies ahead of us, knows what lies within us, and who invites us into an eternal partnership—through prayer