While researching an answer to the question "Does a pastor's struggle with pornography disqualify him from ministry?" for a chapter in an upcoming Covenant Eyes e-book, I read portions of Sex and the Supremacy of Christ by John Piper and Justin Taylor.
Here's my quick review.
This book is for single men and women and married couples who desire to honor God with their sexuality. Its authorship is a compilation of who's who in Christian writing: Al Mohler, Mark Dever, C. J. Mahaney, John Piper, and others. David Powlison's chapter "Making All Things New: Restoring Pure Joy to the Sexually Broken" must be the single best biblical encouragement in print to those who need restoration from sexual sin.
Here's the amazing part: Desiring God Ministries offers a free e-book version at Desiring God Resources. If there is but one book on your shelf about God's view on sex, I hope that it is this one.