Many Christians struggle with prayer even though it's an essential part of the Christian life. "What should I pray for?" they may wonder. "How should I pray?" "What if my mind wanders?" "What if I get stuck praying the same thing every day?" When asked by his barber and good friend Peter Beskendorf for some practical guidance on how to pray, Martin Luther responded by writing this brief treatise, first published in 1535. This edition is a...