"This is the definitive Permaculture design manual. It is the textbook and curriculum for the 72-hour Certificate course in Permaculture Design. Written for teachers, students, and designers, it follows on and greatly enlarges on the initial introductory texts, Permaculture One (1978) and Permaculture Two (1979) both of which are still in demand. This book is about designing sustainable human settlements, and preserving and extending natural systems. It covers designing and maintaining a cultivated ecology in any climate: the principles of design; design methods; understanding patterns in nature; climatic factors; water; soils; earthworks; techniques and strategies in the different climatic types; aquaculture; and the social, legal, and economic design of human settlement. It covers design methodologies and strategies for both urban and rural applications, describing property design and natural farming techniques"--