Native American style flute instructors
Ami Sarasvati - Certified Music Practitioner
Learn to Play Program
I recently came across this program and believe it is one of the easiest to learn, follow and apply.
You can purchase her book on Amazon, but if you are serious about learning to play the Native American flute, particularly if you do not have access to a local flute circle, I would encourage you to signup for her program. Just go to: learntoplaynaf.com