This valuable tome contains wonderfully illustrated taxonomic keys and biological synopses for a large range of terrestrial and soil-dwelling organisms oft overlooked (both scientifically and literally); covering not only insects but bacteria, annelids, gastropods, tardigrades, arachnids, myriapods, isopods, etc. with a focus on North America. With a total of over 50 contributing authors, each of the 43 chapters covers a different group of organisms.