Nationhood Interrupted: Revitalizing nehiyaw Legal Systems is the 2015 publication by Sylvia MaAdams (Saysewahum), co-founder of the international movement Idle No More. Traditionally and through custom, nêhiyaw (Cree) laws are shared and passed down through the generations in the oral tradition, utilizing stories, songs, ceremonies, lands, waters, animals, land markings and other sacred rites. The loss of the languages, customs, and traditions of Indigenous peoples as a direct result of colonization has necessitated this departure from the oral tradition to record the physical laws of the nêhiyaw, for the spiritual laws can never be written down. As a result, this book is the first of its kind. Sylvia McAdam (Saysewahum) is a citizen of the nêhiyaw Nation, who holds a Juris Doctorate (LL.B) from the University of Saskatchewan and a Bachelor's of Human Justice (B.H.J) from the University of Regina. She is a recipient of the Carol Geller Human Rights Award, Foreign Policy's Top 100 Global Thinkers Award, Social Justice Award, 2014 Global Citizen Award, and has received several eagle feathers from Indigenous communities. She remains active in the global grassroots Indigenous led resistance called “Idle No More” (www.idlenomore.ca).