I would categorize this book for beginners, and could easily be understood by young adults.
My ONLY complaint is her version of the medicine wheel. Of the 12-15 medicine wheel traditions I have seen; this one is by far the most complex.
Personaly; I prefer the medicine wheel tradition that is based on the vision of Oglala Sioux holy man Nick Black Elk.
If you want to learn this easier medicine wheel tradition; contact me by E-mail.
Wah doh Ogedoda (We give thanks Great Spirit)