Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Beautiful and informative

This is a beautifully illustrated book (colored plates, and black-and-white diagrammatic illustrations of fossils and reconstructions of living animals) and an even more informative book. Recommended for both professionals and avid enthusiasts, this book opens up with creative imaginings of what the lives of these animals were like (though the rest of the writing can actually be rather technical).