Instruct: Classify the given Amazon review as either positive or negative.
Query: How Motown worked...and then didn't

The subtitle to this book is the key to its success. Author Edmonds spins a novelistic story about how Marvin Gaye had to fight every aspect of Motown's mighty production line to get this album made, from breaking out of the "rock 'n' roll singer" mode that the label tried to force him into, to his reinventing himself as a songwriter/producer, to insisting on the single's release over Berry Gordy's objections by going "on strike" until it was done, to completing the album's month-long time limit on recording by trying to win a bet with Gordy. By doing all that, and winning financially and creatively, he started to break down the production line that made Motown run so efficiently and led to the end of the label's glory days. So it's a bittersweet tale, but one so compellingly told it becomes one of the most valuable books on the Motown system, why it was great, and why it wasn't.