Linguistic typology identifies both how languages vary and what they all have in common. This Handbook provides a state-of-the art survey of the aims and methods of linguistic typology, and the conclusions we can draw from them. Part I covers phonological typology, morphological typology, sociolinguistic typology and the relationships between typology, historical linguistics and grammaticalization. It also addresses typological features of mixed languages, creole languages, sign languages and secret languages. Part II features contributions on the typology of morphological processes, noun...