A lot in a small compass
There has been so much written about the Book of Isaiah that it would take a huge, multi-volume work to do justice to it all.  This book cannot do so, but it does cover a surprising amount, though at the cost of being too concise for easy readability.  He includes everything from textual criticism to his controversial canonical criticism (see his book "Introduction to the Old Testament As Scripture").  The latter means, in this case, that he does not deny that the book can be split into Isaiahs 1, 2 and 3 but he dismisses it as irrelevant and concentrates on the book as part of scripture.  Someone making a detailed study of Isaiah would want several commentaries, of which this should be one.  Someone wanting a more modest library with only one commentary on Isaiah could do worse than choose this one.
Smaller than what I expected but mygrandson shouldlove it for a gift for Christmas and thank you for fast delivery.