Instruct: Classify Amazon reviews into positive or negative sentiment
Query: a good solid field guide

As with all the Audubon Field Guides, so with this one: The color photos are the best of the guides; the durable construction with leatherette cover is very good; and the information is generally accurate and descriptive. The index is organized to cross refererence the color plates with the descriptions - it's pretty straight forward when looking up a bug. Yet, the summaries, as in all the Audubon books, are just too brief; this may be the most glaring of its deficiencies. Any future edition could use a fleshing out on the details.The Audubon books are better than the Stokes and Peterson guides. As a general all round guide, these books have a place in any naturalist's library.Extracts: A Field Guide for IconoclastsThe Cloud Reckoner