The Bob Dylan Encyclopedia (2008)
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.
Bob Dylan: The Essential Interviews (2007)
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.
Studio A: The Bob Dylan Reader (2005)
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.