In this slim yet succinct volume, Buchanan introduces the student to the concept of intertexuality—using Scripture to illuminate Scripture. Using several examples from his own studies that span decades, Buchanan shows the practicality and accuracy of this method of interpretation. For instance, he compares the story of the Exodus with several passages from the book of Isaiah, showing how the one is actually a sermon based on the other. This is a necessary book for anyone interested in interpretation of the Scriptures and how we know what we know about the Bible.