Instruct: Classify Amazon reviews into positive or negative sentiment
Query: New Book Disaster 2000

I imported this book expecting a complete overview of their 40 years plus career together with some insightfull glimpses of their lives from Isle of Man to US 2000, but when I finished reading the book it was with a feeling of sadness. Sadness for waiting this long for such book written with lack of unit. Furthermore, as other reviewers stated so well, no detailed information about their discograpy, concerts, not even a list of the songs composed by the Bee Gees!!