In today's world – one characterised by globalisation, transnationalism, transmigration and super-diversity – there exists an urgent need to critically examine language in education, language policies, the role of English and linguistic diversity. This volume explores language issues in the linguistically-diverse settings of Commonwealth countries, alongside supporting reports into the way these issues have been addressed in the United States. Countries within the Commonwealth provide some of the most instructive instances of language use as instruments of empowerment and oppression, cultural liberation, religious evangelism, and as a tool to unify, isolate and/or separate ethnic groups.