Just listing books that have had a big impact on me:

* The Now Habit - http://www.amazon.com/dp/1585425524

* Getting Things Done - http://www.amazon.com/dp/0142000280

* Simply Christian - http://www.amazon.com/dp/0061920622

* Surprised by Hope - http://www.amazon.com/dp/0061551821

* The Great Divorce - http://www.amazon.com/dp/0060652950

* Mere Christianity - http://www.amazon.com/dp/0060652926

* The Meditations of Marcus Aurelius - http://www.amazon.com/dp/048629823X

* Tao Te Ching - http://www.amazon.com/dp/0060812451

Books from the Bible that I like:

* Genesis

* Judges

* Ruth

* Tobit

* Job

* Psalms

* Ecclesiastes

* Sirach/Ecclesiasticus

* Everything written by John