Does prayer make any difference? Does it really change anything? Yes, says Dr. R. C. Sproul in this Crucial Questions booklet. Though we cannot hope that our prayers will change God's mind, prevailing upon Him to act against His will, we can be sure that prayer does change things including our own hearts. Plus, it is one of the chief means by which God carries out His will in the world. For these reasons, Dr. Sproul argues, prayer has a vital place in the life of the Christian. In short chapters packed with practical wisdom, he unveils the purpose, the pattern, the practice, the prohibitions, and the power of prayer, calling Christians to come before God's presence with joy and hope.