If you are interested in learning about prominent stories surrounding medicine men of different U.S. indigenous groups, then The World We Used to Live In is a pretty solid source.

There are really great dreams, stories, and histories shared in this collection that are organized by spiritual themes. My only criticism would be a lack of context, especially in regards to specific tribal traditions. Stories presented in each chapter represent a multitude of groups from different regions, and given the personal nature of these accounts, I would have liked a little more exposition to better emotionally and culturally understand.

That said, it is an interesting collection. If you are interested in the specific topic, I would recommend it.