This episode covers Permaculture Principles by David Holmgren's book "Permaculture: Principles and Pathways beyond Sustainability". Another form of Permaculture Principles can be found in Bill Mollison's "Introduction to Permaculture" and. Also mentioned are the Design Considerations from Bill Mollison found within "Permaculture: A Designers' Manual". Also mentioned in the description, Will Hooker's augmented permaculture principles (NC State University Permaculture Class/Lecture series). His Permaculture Principle version combines both David and Bill's principles.
Permaculture: Principles and Pathways beyond Sustainability by David Holmgren:
Want more depth to the principles in this episode? This free download further explains each principle, written by David Holmgren.
Permaculture Principles found within Introduction to Permaculture by Bill Mollison:
Augmented Permaculture Principles by Will Hooker - combines both Mollison and Holmgren's principles.