Holy Ambition by John Piper
By God’s design, doing missions with content, in all its modern formats, continues to be one of the most effective means for advancing the gospel. It is key to equipping the next generation of leaders. There are two things in the entire history of missions that have been absolutely central. One, obviously, is the Bible itself. The other is the printed page. There is absolutely nothing else, in terms of mission methodology, that outranks the importance of the printed page. Meetings come and go and personalities appear and are gone. But, the printed page continues to speak.