Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sandoval's magnificent obsession

This is a jaw-dropping volume of research from the world's foremost authority on the Monkees, painstakingly assembled and magnificently presented. I can hardly believe it exists! The only book it can be compared to is Mark Lewisohn's THE BEATLES RECORDING SESSIONS, which has (incredibly! impossibly!) been allowed to go out of print.The lesson, Monkee fans? Grab it while you can. You know who you are.