A cogent, clearly-written synthesis of new and classic work on crosslinguistic influences on language and thought, this book is intended as a text for upper-level undergraduates and graduate students, as well as a resource for instructors and scholars in applied linguistics, linguistics, and psycholinguistics courses. This topic is a perennial favorite in courses on bilingualism, psycholinguistics, and even cognitive psychology, and has come into even sharper focus over the past decade or so with the rapid increase in the availability of crosslinguistic data from languages other than English.