Alice Beck Kehoe 
North America before the European Invasions [PDF ebook] 

North America Before the European Invasions tells the histories of North American peoples from first migrations in the Late Glacial Age, sixteen thousand years ago or more, to the European invasions following Columbus’s arrival. Contrary to invaders’ propaganda, North America was no wilderness, and its peoples had developed a variety of sophisticated resource uses, including intensive agriculture and cities in Mexico and the Midwest. Written in an easy-flowing style, the book is a true history although based primarily on archeological material. It reflects current emphasis within archaeology on rejecting the notion of "pre"-history, instead combining archaeology with post-Columbian ethnographies and histories to present the long histories of North America’s native peoples, most of them still here and still part of the continent’s history.