Brian Tracy, one of the top professional speakers and sales trainers in the world today, found that his most important breakthrough in selling was the discovery that it is the "Psychology of Selling" that is more important than the techniques and methods of selling.

In this rich and resonant work, Kierkegaard reflects on the biblical story of God's command to Abraham that he sacrifice his son Isaac as a test of faith. This volume, first published in 2006, presents the first new English translation for twenty years, by Sylvia Walsh, together with an introduction by C. Stephen Evans.