This is the best guide I've found for Lepidopterists who need images of all metamorphic stages. It's not a large cross-section, but at least the author provides common names, food plants, larva, pupae, and adult images so it becomes easier to identify these common specimens. I wish it was more comprehensive and for some reason the scientific names are only listed in the index, but overall it's a handy little pocket guide. Great for kids who are nature explorers, or hobby entomologists looking to sharpen their identification skills.