Blue Like Jazz by Donald Miller
In Miller's early years, he was vaguely familiar with a distant God. But when he came to know Jesus Christ, he pursued the Christian life with great zeal. He then pursued a life of ministry, but over time became burned out and feeling far away from God. In Blue Like Jazz Miller describes his remarkable journey back to a culturally relevant, infinitely loving God.  
                                                                                                    

Mere Christianity by C.S. Lewis
Considered a significant twentieth-century book by Christians of various traditions of faith, Mere Christianity is a revised version of some addresses given by Lewis, an Oxford literature professor, on the BBC in the early 1940s. The text, which makes an argument for Christianity, was written in an informal, conversational style that is well
suited for understanding challenging Christian principles.
                                                                                                      

Raggamuffin Gospel by Brennan Manning
Brennan Manning wrote The Ragamuffin Gospel "for the bedraggled, beat-up, and burnt-out, the ragamuffins. Manning points out how Jesus delivered love, healing, and, most of all, grace to people.
                                                                                                 
                                                                                                    

The Jesus I Never Knew by Philip Yancey
Yancey examines three questions regarding Jesus: who Jesus was, why he came, and what he left behind. Step by step, scene by scene, Yancey probes the culture into which Jesus was born and grew to adulthood; his character and mission; his teachings and miracles; his legacy--not just as history has told it, but as he himself intended it to be. 
                                                                                                      

Organic Church by Neil Cole
Churches have tried all kinds of ways to attract new and younger members - revised vision statements, hipper worship, contemporary music, livelier sermons, bigger and better auditoriums. But there are still so many people who aren't being reached, who don't want to come to church. Cole proposes that if the church wants to reach new people, they must go to where those people are.
                                                                                                   
                                                                                                      

Speaking My Mind by Tony Campolo
Campolo says he expects to wrestle with some of these challenging topics for as long as he lives and is able to think." Frankly, I think many evangelicals today could describe themselves in a similar way, but they lack the courage to admit that their thinking on these issues has led them to the same path Campolo is on.
                                                                                                     

Purpose Driven Life by Rick Warren
The spiritual premise in The Purpose-Driven Life is that there are no accidents---God planned everything and everyone. Therefore, every human has a divine purpose, according to God's master plan. This book could be summed up like this: "So my fellow Christians, ask not what God can do for your life plan, ask what your life can do for God's plan."