Designed as a textbook for a semester length graduate-level course, the text introduces the major concepts and methods of ecological engineering as well as this new discipline's most important real-world applications: treatment wetlands; microcosms; composting systems; restoration ecology; soil bioengineering; and invasive species control. The text surveys the field with an introductory chapter on definitions and principles, along with six chapters treating major sub-fields, a chapter on applications of economics, and a conclusion chapter with synthetic propositions with comments on education and future directions