Genealogical linguistics and areal linguistics are rarely treated from an integrated perspective even if they are twin faces of diachronic linguistics. In Copies versus Cognates in Bound Morphology Lars Johanson and Martine Robbeets take up this challenge. The result is a wealth of empirical facts and different theoretical approaches, advanced by internationally renowned specialists and young scholars whose research is highly pertinent to the topic. Copies versus Cognates in Bound Morphology puts genealogical and areal explanation for shared morphology in a balanced perspective...