Hartley's study on the Book of Job is a contribution to The New International Commentary on the Old Testament which devotes care to achieving a balance between technical information and homiletic-devotional interpretation. The commentary is based on the author's own translation of the Hebrew text and discusses the book section by section.

This commentary on Job follows in the tradition of the NICOT series by providing an up-to-date evangelical commentary based on thorough scholarship. John E. Hartley deals carefully with this book whose language, text, and theology are not only among the most intriguing in the Old Testament but also among the most difficult to grasp.