The Normal Christian Life, by Watchman Nee, is one of the best Christian books I've read.  It is a very detailed look at the first 8 chapter of the book of Romans, that will change your viewpoint on Christianity.  The good news presented in Nee's profound little book is that the work is already done.  Our responsibility is only to come to that realization and trust that God will complete the work He has begun in us.

Excerpt:

God will not give me humility or patience or holiness or love as separate gifts of his grace. He is not a retailer dispensing grace to us in packets, measuring out some patience to the impatient, some love to the unloving, some meekness to the proud, in quantities that we take and work on as a kind of capital.  He has given only one git to meet all our need:  His Son, Jesus Christ.