So glad you enjoyed! This link is a good start for some of the basics, I think:
https://permaculturenews.org/what-is-permaculture/
Here you can check out Mark's projects, a bit more in depth:
http://restorationag.com/
And a good book to get started is Gaia's Garden by Toby Hemenway. Mark also has a book called Restoration Agriculture, but again, it's a bit more advanced.
Tons and tons of videos out there too. This guy is another of my favorites:
http://www.permacultureorchard.com/
Enjoy, and please follow up if you have any more questions or thoughts!