Clinton Heylin is an intense Dylanologist. In this book he organizes every song Dylan wrote over 25 years in chronological order (based on detective work, drafts, etc.) and writes an evaluation of each one. Sometimes this is a little boring, sometimes the songs are, but in many cases he makes you think about a familiar song in a new and interesting way. My particular favorite is probably his analysis of whether “The Lonesome Death of Hattie Carroll” is a true story.