Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Detailed but boring account of the great one's life and music

Bob Dylan would be one of the most difficult subjects for a biography you could think of. His enigmatic statements and constant reinvention make him hard to pin down - not to mention the way he protects his privacy, giving few revealing interviews. Heylin attempts to make up for this by describing lots of often irrelevant details but never succeeds in giving you a sense of the man or his music. Heylin declines to make his own analysis of Dylan's music, perhaps feeling too scared he would make a fool of himself if he did. After a while it just becomes boring. Oh and what a terrible title.