Instruct: Classify Amazon reviews into positive or negative sentiment
Query: great book

I think this book is great. I've been able to id almost every tree/shrub we've got in our woods (I also purchased some of the other books by this author so I can id vines and things too). True the pictures are in black and white but it really isn't a big deal. You're looking at leaf shape and vein designs and things like that - it would be green and white if it were in color. I think its a terrific reference and I'd buy it all over again