Indeed, the book has much more than dragonfly imitations. As I indicated in the review, without giving too much away, it is a book that is intended to make the anglers think about not just mayflies, caddis flies and stone flies. To quote from my review "In this book the author explores not only the different insects and other food items that trout consume, but he raises questions about why anglers don’t pay more attention to these food forms since they make up a sizeable portion of the trout’s diet." If you tie flies or if you are a fly fisher that is interested in exploring the things fish eat, especially trout, besides the regular insects found on a hatch chart you will find this book a very worthwhile investment.