In recent years we have witnessed a growing interest in multilingualism and its relationship with the learning and teaching of second/foreign languages. However, multilingualism is a highly complex phenomenon, which has a direct influence on how we learn languages. For instance, do we learn a second/foreign language in a similar way in a multilingual context as in a monolingual one? What is the role of the other languages spoken in the community? Do contrasting learning contexts, like CLIL or studying abroad, produce different results? Can positive emotions such as foreign language enjoyment have an active role in the foreign language learning process? These and other topics will be discussed in this book, with the aim of understanding multilingualism, how languages are learned and how to teach them better. This book was originally published as a special issue of the International Journal of Multilingualism.

This publication constitutes essential reading for academics, teachers and language policy makers wanting to understand, plan, and implement an educational language program involving learner mobility. The book provides data and analyses from a long-term program of research on study abroad (the SALA Project), which looked into the short and long-term effects of instructional and mobility contexts on language and cultural development from two perspectives: the participants' language acquisition development over 2,5 years, and the practitioners' perspective in relation to the design and implementation of a mobility program. The book is innovative in the longitudinal data it offers, the light it sheds on (i) an array of language skills, both productive and receptive, oral and written, tapping into phonology, lexis, grammar and discourse, (ii) the role of individual differences (including attitudes, motivation, beliefs, and intercultural awareness), and (iii) the insights on the effects of length of stay. In sum, this book represents a welcome addition to previous research on the outcomes of mobility policies to promote L2 learners' linguistic development and the individual and educational conditions that appear to facilitate success in study abroad programs.

This book is intended to introduce novice student researchers to second language acquisition in the study abroad learning environment. It reviews the existing literature and provides the emerging researcher an overview of the important factors to consider, informs them where to begin, and how to move forth an agenda for future research in this field. The book recognizes that aside from the academic advantages, study abroad programmes are an excellent tool for fostering extended and relevant interaction with native speakers. It provides reflection questions and activities, and guides the novice researcher in critically analysing existing research and to eventually carry out their own study. The book will be of use to beginning researchers who are new to linguistics in the areas of study abroad and second language acquisition.