I'm looking forward to C.J. Mahaney's new book, Humility: True Greatness. I have the sermon audio this book is based on, so I expect great (er...humble) things.
You can read blurbs about the book over at Reformation21.
Wayne Grudem praises the book...
This is a wonderful, sobering, humbling, God-centered, Bible-based book on humility by an author who truly exemplifies it in his own life. I especially appreciated Mahaney's suggestions for practical disciplines to help us cultivate humility before God. This book's message will tend to keep us and our churches from self-destruction due to pride, will make us thankful for little blessings in everyday life, and will bring us closer to God.