This book examines the special nature of English both as a global and a local language, focusing on some of the ongoing changes and on the emerging new structural and discoursal characteristics of varieties of English. Although it is widely recognised that processes of language change and contact bear affinities, for example, to processes observable in second-language acquisition and lingua franca use, the research into these fields has so far not been sufficiently brought into contact with each other. The articles in this volume set out to combine all these perspectives in ways that give us a better understanding of the changing nature of English in the modern world.