JI Packer is Board of Governors Professor of Theology at Regent College in Vancouver, British Columbia. He also serves as contributing editor to Christianity Today. Carolyn Nystrom (MA, Wheaton College) has written more than eighty books, Bible study guides and children's titles. She served as general editor for the Christian Classics series and she co-authored Guard Us, Guide Us and Praying with theologian J. I. Packer, and Before I Was Born (God's Design for Sex with Sandra Speidel). In addition to actively serving in her church and community, she has been a foster parent, an elementary schoolteacher and a book editor. Carolyn lives in the Chicago area with her husband and they have four grown children.