Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Where's the Mac? Why the rehash?

I too was annoyed to find that the first 2/3 of this book rehashed the Virtual Doonesbury and Planet Doonesbury books I already owned. Even more irked to find the CD doesn't support Mac users! It's still Doonesbury and these are great strips but I wish Trudeau would think of his FANS when putting these books together. I feel betrayed!