JOHN WESLEY (1703-1791) is the chief architect and source of inspiration for the teaching commonly referred to as Christian Perfection. Yet the journey Wesley traveled in forming his views on perfect love is largely unknown and often misunderstood. In this second volume of a groundbreaking series, Olson leaves no stone unturned as he guides the reader along a path explaining how and why Wesley's most beloved doctrine took the shape it did. In this way the reader is offered surprising insights into Wesley's philosophy of discipleship and spiritual growth. All periods of Wesley's long and eventful career are covered, with special attention given to those factors which most influenced his own faith journey. The entire Wesley corpus is utilized: sermons, journals, letters, diaries, and other writings. A four gospel scheme organizes Wesley's doctrinal development for easy memorization and understanding. Numerous charts visually empower a fuller understanding of Wesley's theology of perfection. Several appendices offer a timeline and several historical studies on Wesley's faith journey and theological development. Whether one agrees or disagrees with Wesley's vision of Christian holiness, all will be challenged to reflect more deeply on the nature of Christian discipleship and what it means to be a fully devoted follower of Jesus Christ.