Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This one needs a minus rating!!

The author published corrections on the web site, but they are too numerous to make the book worthwhile. As you flip through the pages and think you've found a color combination, you then have to compare it against the error list... what a pain - the errors have made the book worthless for what the stated intent was. If you simply want to be able to look at three colors next to each other to see what you might like, it does that. Try then to use the RGB scale for the corresponding numbers, and that's when the 'fun' begins of uncovering error after error!!