Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Gem!

This is the perfect book if you live in the Bay Area, know nothing about the trees on the street, but are interested in learning. Mike Sullivan takes what's interesting about San Francisco's trees, and makes it accessible for the average reader. The side-bar stories are also interesting - stories about San Francisco's flock of wild parrots and the trees that they enjoy, and the "Secret Garden" in the haight-ashbury that is private and overgrown, but has some of San Francisco's most interesting trees. The book is very well written, and it's beautifully put together. I also loved the non-tree related trivia and neighborhood "color" that Sullivan introduces throughout. It's clear that he loves San Francisco as much as trees!