In this chapter-by-chapter and verse-by-verse commentary on Isaiah, the author succeeds admirably in making the prophet Isaiah's meaning clear. The scholarly and informative general introduction (over 70 pages) to the Book of Isaiah alone is worth the purchase price. As Dr. Unger points out in his Introduction, the author's unusual knowledge of Hebrew makes his work especially useful to students of the original text. The layperson, however, can benefit also due to Dr. Alexander's ability to make himself clearly understood.