Written mainly for students, workers, and researchers of the field. A well written in depth look and study, Of types of integrated food production systems world wide. I found the Pond/Dike systems of China to be of special interest. Due to their high production rates. A bit technical at times. But a worthy read for anyone contemplating Designing a permaculture system of their own.
Integrated Farming Systems vol. 1 & 2
Detailed comparisions and explanations of many Integrted farming systems worldwide