The book is divided by the book's major divisions, just as a normal single-volume commentary would be. Especially useful are Johnson's charts and diagrams. Romans is a notoriously complex work, and Johnson does an excellent job untangling it for laypeople. Johnson treats theological issues fairly and does not dive too far into doctrinal interpretations, instead leaving the assumptions to the reader. This book is rather designed to serve as a reference to one's Bible study, teaching preparation, or personal devotions. It remains readable and interacts with the entirety of Scripture, the historical witness, and theologians throughout church history. This physically small book is actually quite hefty in its content, and laypeople and ministers alike will find value in this incredibly accessible commentary on Paul's masterpiece. It is also very affordable!
(My thanks is given to Moody for providing a complimentary review copy.)