As in previous years, Desiring God has put together a book based on the six sessions of their annual national conference. The 2011 event boasted an impressive line-up of speakers whose messages are now featured in this volume: David Platt, New York Times best-selling author of Radical; Louie Giglio, founder and leader of Passion conferences; Michael Ramsden, one of the foremost apologists of our day who works alongside Ravi Zacharias and speaks at events worldwide; Michael Oh, president and founder of CBI Japan and All Nations Fellowship; Ed Stetzer, church planter, professor, and vice president of Lifeway Christian Resources; and John Piper, teacher, author, and pastor, and founder of Desiring God ministries. The book is purposed to compel Christians to cross cultural and linguistic barriers to reach the lost with the gospel.