a timely contribution to the field of bilingual acquisition research ... offers a rare but much needed social-interactional and context-based perspective on early bilingual development ... the main strength of Lanza's approach ... lies in the highly detailed and insightful analyses of the dynamics of parent-child interactions and their effect on children's language choice ... Lanza has done the field of bilingual acquisition research a great favor by drawing attention to the more sociolinguistic, interactional aspects of early bilingual development ... future research into bilingual acquisition can now no longer ignore the importance of the sociolinguistic dimension of learning to speak more than one language from infancy.