This volume reanalyzes the theory and practice of reversing language shift (RLS), first proposed by Fishman (1991). It provides a wealth of information about language shift and public policy. Fishman contributes introductory and concluding chapters as well as one of the case studies (Yiddish); other authors cover Navajo, New York Puerto Rican Spanish, Québec French, Otomí, Quechua, Irish, Frisian, Basque, Catalán, Oko, Andamanese, Ainu, Hebrew, immigrant languages in Australia, indigenous languages in Australia, and Maori.