How and why do languages change? This new introduction offers a guide to the types of change at all levels of linguistic structure, as well as the mechanisms behind each type. Based on data from a variety of methods and a huge array of language families, it examines general patterns of change, bring[...]

This is a textbook right in the thick of current interest in morphology. It proposes principles to predict properties previously considered arbitrary and brings together the psychological and the diachronic to explain the recurrent properties of morphological systems in terms of the processes that c[...]