Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not very carefully proofread, if SearchInside is any indication

In the second sentence of the book appears the phrase "a fourth kind of photo-receptor cell, called roads [sic]"Hmmm...I wonder how much time I'd spend bogged down in typographical errors if I actually shelled out money for this book.(The text does go on to use the correct term "rods" in the next paragraph.)