This study investigates the mechanisms of language obsolescence and the efficacy of revitalization efforts within contemporary Welsh-speaking communities. Mari C. Jones, a specialist in language contact and minority languages, utilizes extensive primary fieldwork conducted in two sociolinguistically distinct Welsh regions to analyze the tension between language decay and standardization. By integrating comparative data from Breton and Cornish, the author constructs a framework for understanding how institutional agents, including media and immersion education, influence the trajectory of endangered languages.

Experts recognize this work as a foundational text for understanding the practical application of language revitalization strategies in minority language contexts. Readers frequently note the academic density of the prose and the rigorous methodological approach applied to the study of Welsh sociolinguistics.