- Bill Mollison – the founder of Permaculture
- Toby Hemenway – author of a perennial Chelsea Green bestseller Gaia’s Garden
- Ben Falk – author of the award-winning The Resilient Farm and Homestead
- Eric Toensmeier – author of the award-winning Perennial Vegetables and the latest Paradise Lot
- Wayne Weiseman – 1 of 3 authors of the forthcoming book Integrated Forest Gardening
- Daniel Halsey – 1 of 3 authors of the forthcoming book Integrated Forest Gardening
- Bryce Ruddock – 1 of 3 authors of the forthcoming book Integrated Forest Gardening
- Michael Judd – author of the book Edible Landscaping with a Permaculture Twist
- Patrick Whitefield – author of books like The Earth Care Manual, How to Make a Forest Garden, Tipi Living, Permaculture in a Nutshell
- Dave Jacke – experienced permaculturist in Cold Temperate, Cool Temperate and Warm Temperate climates
- Geoff Lawton – is a permaculture consultant, designer and teacher. He holds a diploma in permaculture design. Wikipedia
- Graham Bell – author of the book The Permaculture Garden