Practical Truths from the Book of Job by George Wagner.
This book is a series of sermons which where first preached in the 1860's. C H Spurgeon in his "Commenting and Commentaries" writes "Wagner's sermons are simple and plain, devout and instructive. We have here nothing very fresh, but everything is sound and good." Despite this not being a complete commentary on the Book of Job, the 28 sermons cover the main points of the Book.