I would like to recommend the following for those interested in the history of colonization, Indigenous Peoples perspectives on this history and ways forward to decolonize.
The first two books are, in my opinion, the most important books written by Indigenous women that capture the essence of Indigenous arguments about a number of topics: colonization, decolonization, democracy, education, Christianity, research, philosophy of science, post-positivist thought etc. They are the books that awakened me from my colonized slumber.
Linda Tuhiwai Smith (1999) Decolonizing Methodologies: Research and Indigenous Peoples
Sandy Grande (2004) Red Pedagogy: Native American Social and Political Thought
The following two books are very well thought out "academic texts".
Norman K. Denzin, Yvonna S. Lincoln and Linda Tuhiwai Smith (Eds.)(2008) Handbook of Critical and Indigenous Methodologies
Norman K. Denzin & Michael D. Giardina (2006) Qualitative Inquiry and the Conservative Challenge
The following are also very good books:
Thomas D. Hall & James V. Fenelon (2009) Indigenous Peoples and Globalization: Resistance and Revitalization.
George, J. Sefa Dei, Budd L. Hall & Dorothy, Goldin Rosenberg (Eds.)(2000) Indigenous knowledges in global contexts: Multiple readings of our world.
Lois Meyer and Benjamin Maldonado Alvarado (Eds.) (2010). New world of Indigenous Resistance: Noam Chomsky and voices from North, South and Central America.
Taiaiake Alfred (2009) Peace, Power and Righteousness: An Indigenous Manifesto
Taiaiake Alfred (2009) Wasase: Indigenous pathways of action and freedom.
Douglas M. George-Kanentiio (2008) Iroquois on Fire: A voice from the Mohawk Nation
And of course, the book that should be required reading for everyone even if the author was ignorant of his own male privilege.
Paulo Friere (2009) Pedagogy of the Oppressed (30th Anniversary Edition)