Subterranean Homesick Blues
Dylan guru Michael Gray is smart and objective throughout this mind-numblingly big piece of work on Dylan, which is intense in its completeness as a resource.
What better way to understand the artist than to go directly to the wellspring of creativity himself? With over 40 years of interviews in this book, it's a great, inspiring, and funny look at Mr. Dylan.
Benjamin Hedin compiled a great set of resources here, interviews, criticism, analysis, poetry, and reviews by various sources including Dylan himself fill in this college-class-worthy reader.