"Dancing on our turtle’s back: stories of Nishnaabeg re-creation, resurgence and a new emergence" by Leanne Simpson.
I picked this up on one of my semi-regular trawls of Chapters’ (tiny) indigenous studies section. It’s a wee little book, about 160 pages including the index, but it’s got pretty dense ideas and language that may be challenging for non-speakers of Nishnaabemowin. That said, she’s careful to define her terms (and thoroughly cite the conversations with Elders through which she arrived at her understanding of their meaning(s)) and it’s overall a pretty accessible text.
Eight short chapters/essays. Really really good. Read it if you can find it!