This book is an important and useful contribution to the literature on language shift, especially for readers interested in this issue in American Indian communities. House focuses on discrepancies between public discourse about what it means to be a Navajo person and “undiscussed, yet highly visible, linguistic and behavioral practices” – that is, between conscious, discursive ideology and more unconscious, behavioral ideology as revealed through social practice. She challenges the widespread claim in the Navajo community for the existence of Navajo cultural homogeneity, arguing that although such essentializing discourse may have political, economic, and spiritual motivations, it is also unrealistic and complicates efforts to reverse language shift.