The Bilingual Brain

'Fascinating. . . This engaging book explores just how multiple languages are acquired and sorted out by the brain. . . Costa's work derives from a great fund of knowledge, considerable curiosity and solidly scientific spirit' Philip Hensher Spectator The definitive study of bilingualism and the human brain from a leading neuropsychologist Over half of the world's population is bilingual and yet few of us understand how this extraordinary, complex ability really works. How do two languages co-ex