One of our theological librarians, Lugene Schemper, has created a guide to the book of Isaiah, since this is the topic of the all-campus Bible study for the semester. 

He has provided a list of helpful commentaries, basic study material, (also available at the Campus Store), and links to further information.

If you are involved in the study you may want to branch out beyond the basics and check out some of the other recommended study aids.