It is no surprise that a large amount of interesting contemporary work on all aspects of bi-tri-and multilingualism emanates from Spain. A portrait of the young in the new multilingual Spain provides a rich example of this work, covering many aspects, both internal and external, of a multi-faceted phenomenon. Factors taken into account include the context of acquisition linguistic input, the "critical mass" hypothesis, the role of the classroom "personal factors" learners with SLI, learners of different ages, the role of literacy and the nature of bilingual linguistic competence: Grosjean's "the bilingual is not two monolinguals in one person". From the grammatical point of view this last factor finds an almost ideal testing ground in Spain, with the availability of bilinguals speaking closely-related languages (Spanish and Catalan) and non-related languages (Basque and Spanish), a fact reflected in this book. Finally, and above all, this book is a striking example of the way attitudes to bi-and multilingualism have changed. Professor Clive Perdue, France Université Paris 8, France