You may order a maximum of 4 books for a flat $8 shipping Soft Cover 5.5"x8", perfect binding Co-authored by MNPS board members Jil Swearingen and Judy Fulton. "This practical book is intended for people interested in maintaining or restoring natural areas - from parks and preserves to residential landscapes. Managing invasive plants is crucial if we want our native plants and animals to thrive. Plant Invaders provides information on 92 aquatic and terrestrial invasive species threatening our region, guidance on control methods, discussion of the effects of climate change on invasive plants, explanations and maps of ecoregions and physiographic provinces, and suggestions for native plant alternatives." from https://www.invasive.org/midatlantic/fieldguide/