Tim Keller sets out to write the book he wish he had when trying to learn to prayer, echoing the cry from author Flannery O'Connor, "Can’t Anyone Teach Me to Pray?"

Updated with examples and descriptions for a modern audience while building on the legacy of teaching on prayer from historical authors on prayer, Keller explains that many pit two types of prayer against each other: communion vs. kingdom.

Commonion prayer focuses on meeting with God, communing with Him, experiencing Him.

Kingdom prayer focuses on a petitionary, longing, and crying out to God that His kingdom would be built, with less of an expectation of an experience of God or of His reply.