About the Authors; Introduction; Part 1 Multilingualism in Society and Education; Lecture 1 What is Multilingualism?; Lecture 2 Applied Linguistics and Multilingualism; Lecture 3 The Psycholinguistics of Multiple Language Learning and Teaching; Lecture 4 Educational Policy and Multilingualism; Part 2 Aspects of Individual Multilingualism; Lecture 5 Multilingual Individuals; Lecture 6 Cross-linguistic Influence and Multiple Language Acquisition and Use; Lecture 7 Motivation and Multilingualism; Lecture 8 Age and Multilingualism; Part 3 The Psycholinguistics and Neurolinguistics of MultilingualismLecture 9 The Psycholinguistics of Multilingualism; Lecture 10 The Neurolinguistics of Multilingualism; Part 4 Forms of Multilingualism in the Past and Present; Lecture 11 Historical Multilingualism; Lecture 12 Receptive Multilingualism; Subject Index