Studies in Japanese Bilingualism helps dissolve the myth of Japanese homogeneity by explaining the history of this construct and offering twelve empirical studies on different facets of language contact in Japan, including Ainu revitalisation, Korean language maintenance, creative use of Ryukyuan languages in Okinawa, English immersion, and language use by Nikkei immigrants, Chinese War Orphans and bicultural children, as well as codeswitching and language attrition in Japanese contexts.