The "lost" in the title doesn't mean that the author believes no one knows how to pray anymore and he's here to show us how. Rather, he addresses the reasons behind our prayers, the frequency with which we pray, and the content of our prayers, all with the hope of igniting more passion, intentionality, and effectiveness in our prayer lives.

The book is divided into four parts: Prayer Basics, Unlocking the Power of Prayer, Prayers for All Occasions, and Stories of Prayer (real-life anecdotes).