Peterson First Guides are the first books the beginning naturalist needs. Condensed versions of the famous Peterson Field Guides, the First Guides focus on the animals, plants, and other natural things you are most likely to see. They make it fun to get into the field and easy to progress to the full-fledged Peterson Guides. The Peterson First Guide to Insects features: 203 common and conspicuous insects of North America; introductory sections on observing insects, parts of insects, and more; the famous Peterson Identification System, which shows you exactly what to look for.