Right now I'm reading two books that have both been an encouragement to me:
Dug Down Deep by Josh Harris is somewhat of a spiritual autobiography. It focuses on Harris' own journey from a nominal Christian background to the "humble orthodoxy" he now embraces. Chapter 6 on what Jesus did on the cross is probably worth the price of the entire book; but there's lots of other good stuff in there too.
Counsel from the Cross, by Elyse Fitzpatrick and Dennis Johnson, is written to demonstrate the importance of counselors reminding people of Christ's love revealed in the gospel. All of us counsel people in various ways, whether we regard ourselves as "counselors" or not. And there's no better counsel we can give than to saturate people with the good news of Christ's life, death, resurrection and ascension. Readers are reminded of how to consistently apply the truths of the gospel to every area of life.
What book(s) are you reading right now?