A Praying Life

Full review at http://bookwi.se/a-praying-life-by-paul-miller/
Second review six months later at http://bookwi.se/a-praying-life-connecting-with-god-in-a-distracting-world-by-paul-miller-a-second-look/

Short review: One of the best, most practical books on prayer I have read. It really moves the focus of prayer to relationship with God and away from technique. The book is full of good advice, but also stories of prayer from real people. As I said in my full review.

If you want to learn about the variety of Prayer you should read Richad Foster's Prayer.
If you want to motivation on why to prayer, especially as a pastor read EM Bounds.
If you want stories of how prayer makes a difference read Reese Howell: Intercessor.
If you want to see how prayer fits into spiritual disciplines overall read Spiritual Disciplines for the Christian Life.
If you want a book on how to develop a life of prayer read A Praying Life.