Lots of new parents these days have the opportunity to bring up their child with two or more languages because of increasing job mobility and the global community. The benefits of bilingualism and biculturalism such as higher cognitive skills, an awareness of language and sensitivity to other cultures, are being increasingly recognised. However many parents don't know how to start, what methods to use or where to seek help when facing problems.

Now Suzanne Barron-Hauwaert, a mother of three trilingual children, teacher and linguist who has lived and worked all over the world, has...