How does a language community sustain their language in the face of ever-increasing forces of language shift? This volume, both a textbook and a handbook, is the result of ten years of reflection by the authors in light of SIL International's 80 years of fieldwork in local language communities. Using the Sustainable Use Model detailed here, readers learn how to advise maintaining use of their language at a sustainable level. This could include, not only the level of active literacy, but also levels of orality and identity. The book is aimed at "on the ground" workers involved with a...