I was in PA on business looking for a field guide for PA trees to utilize after hours when I found this one. It was just what I was looking for. It is a small book - the perfect size for carrying with you on hikes. Don't let this fool you though. It covers 117 species of trees that are easily found by "thumb-tabs" that quickly take you to the leaf arrangement of your specimen and then the leaf size. (The very first page when you open the book also tells you on which pages the specific leaf arrangements are found.)

There is a full page picture of each tree with inset photos of the bark, fruit, flowers and/or thorns. (The pictures are wonderful!) The opposing page describes the tree's specific ID info, including: family, height (with a picture compared to a house), tree, leaf, bark, flower, fruit, fall color, origin/age (includes whether native or non-native), habitat and range. Following this info is the "Stan's Notes" section which includes interesting info about the tree (uses, alternate names...) and expanded details on some of the descriptive characteristics.

If you live in PA and are serious about studying trees, you will need to get a more advanced book eventually as you learn more about the trees. However, if you are an infrequent visitor to PA (like me), a beginner in tree ID (would be great for kids) or just want an excellent small guide to carry with you on hikes then this is the book for you!