How many languages do you speak? What are they? According to recent studies, today over half of the world’s population is bilingual. But how does this extraordinary, complex ability work? How do two different language systems co-exist in the same brain? What are the advantages and challenges of speaking two languages? This definitive study will give answers to all these questions.

The author of The Bilingual Brain: And What It Tells Us about the Science of Language is Albert Costa, a Catalan cognitive scientist, neuropsychologist, and linguist, whose main sphere of research was focused on the cognitive and brain bases of bilingualism. Unfortunately, this prominent researcher passed away unexpectedly in 2018. Nevertheless, he managed to make an invaluable contribution to the study of the issue of bilingualism.

In this book, Costa shares twenty years of experience to explore the science of language. The book investigates the significant impact of bilingualism on daily life from infancy to old age, reveals how babies differentiate between two languages just hours after their birth, how accent affects the way in which we perceive others and even why bilinguals are better at conflict resolution.

Drawing on cutting-edge neuro-linguistic research from his own laboratory in Barcelona as well from centers around the world, and his own bilingual family, Albert Costa offers a fascinating study of the intricacies and influences of these extraordinary skills.

If you want to learn more about Albert Costa, please, visit

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