Warren, Rick, 1954- The purpose drivenŽ life : what on earth am I here for? / What on earth am I here for? Rick Warren. - Grand Rapids, Mich. : Zondervan, c2002. - 334 pages ; 23 cm "A guide to a 40-day spiritual journey"--Page 9 ISBN: 0310210747 9780310210740 Subjects--Topical Terms: Christian life. Dewey Class. No.: 248.4