This book is a grammar of Pendau, an Austronesian language spoken by around four thousand people in north-central Sulawesi , Indonesia . Pendau belongs to the Tomini-Tolitoli subgroup, and this book is the first comprehensive decription of any of these languages. The Tomini-Tolitoli languages are of interest to typologists in general and more specifically to Austronesianists, since the languages appear to be transitional between better known 'Philippine style' languages and 'Indonesian style' languages. Intricate rules of vowel harmony  in the prefixes used to form verb stems are of particular interest. The grammar is very richly exemplified and covers a wide range of linguistic phenomena from phonetics and phonology through to cohesion and prominence in discourse as well as an analysis of the discourse structure of a number of different genres.