Volume 2 of 2, which covers chapters 40-66.  There were no investigative journalists in the ancient world to bring to the attention of the public matters which the rich and powerful wished to keep hidden. But to a certain extent their role was fulfilled in ancient Israel by the prophets of Yahweh, amongst whom was numbered Isaiah. He exposed the follies of the rich, oppression in society, commented on the inadequacies of foreign alliances, and resolutely confronted wayward kings.  The role of a prophet, however, differed in many key respects from that of a journalist. For one thing, the prophet was called and commissioned by God for the role that he had to play. A true prophet did not opt for this as a career: it was divinely assigned to him.

What people said about volume 1:

‘John Mackay has put an enormous amount of effort into his Isaiah commentary, and it shows.'
Green Baggins (blogger)

‘This new commentary in the EP Study Commentary series is not yet complete, but based on the first volume, it will be a standard work for many years. It is long at 864 pages, but it is not overly technical and should be accessible to most pastors. Mackay works through each section of the book, verse by verse, and concludes with practical reflections.'
Keith Mathison - Ligonier