This is part of a larger project reviewing commentaries on each book of the Bible. Follow the links from that post for more information on the series, including explanations of what I mean by some of the terms and abbreviations in this post.
This post in particular is heavily reliant on my earlier reviews of commentaries on Habakkuk and Zephaniah, since most commentaries on each of these books include all three. One Nahum-specific commentary appears here, just as there were some Zephaniah-specific and Nahum-specific commentaries in the other posts. Where possible, I have tried to key my discussion of each commentary here to the Nahum section in the commentaries that deal with more than one book.
His perspective is conservative, evangelical, and explicitly Reformed. His expertise is in covenant theology, and he has a keen eye for seeing New Testament connections, although on occasion I think he reads a NT perspective into a text that may not have originally gone quite so far. It's a shame that Eerdmans has contracted a replacement for his commentary in this series this early, though Thomas Renz will probably produce a good commentary that will give more detail on the things Robertson doesn't focus much on. See my more detailed review of Robertson here.