This volume concentrates on third language (L3) or multilingual acquisition from a Universal Grammar (UG) viewpoint. A wide range of languages other than English are examined, including French, German, Italian, Spanish, Norwegian, Kazakh, Russian, Mandarin Chinese, Cantonese Chinese, Thai, Japanese and Tagalog with acquisition cases occurring in a variety of geographical locations, such as the U.S., Canada, the U.K., Germany, Norway, Hong Kong, Taiwan, and Thailand.