I've read a number of the Christ-Centrered Exposition Series and they have now become my go-to resource for studying scripture. I often use a second commentary for comparison and additional thought. The series editors mention that they have written these commentaries for the pastor, however, I consider them excellent for the layperson being one myself.
Thessalonians is a surprisingly challenging set of epistles as Paul deals with some meaty issues, in particular, the Day of the Lord and Second Coming, lazy distracting church members and purity. Mark Howell, author of this commentary, does an excellent job in presenting the issues and providing an expository understanding of them. He sources other well-known commentators including John Stott and Gordon Fee which adds to the work.
Even though it is not a verse-by-verse commentary this work is very detailed. The fact that it's almost 260 pages covering only eight reasonably short chapters of the Bible tells Howell covers the key themes in some detail.
As I've mentioned before when reviewing one of this series I recommend them highly and this one is no exception.