With this book the Indonesian linguistics has received not merely one more description of a language, but an urgently needed modern description of a very important language. Acehnese has double-sided importance: as a language with literary tradition spoken nowadays by about 1.5 million people in North Sumatra, and as a language with some structural peculiarities that single out Acehnese among neighbouring languages on Sumatra (including Malay) with which it is closely connected genetically. These structural peculiarities have long ago attracted attention of linguists of whose views M. Durie informs us properly. At the same time some features of Acehnese: high percentage of monosyllabic root morphemes, a comparatively large number of diphthongs, the active role of prefixes and infixes and the absence of suffixes, the absence of clearcut grammatical verbal categories of voice or focus - constitute typical characteristics of many languages in the Indo-Chinese peninsula (Thaï, Vietnam, Khmer, Chamic). The specific phenomenon of the use of pronominal clitics for verb-noun predicative co-ordination reminds clause constructions in some Polynesian languages and thus puts Acehnese apart from the most West-Austronesian languages which Acehnese genetically belongs to. This is why the language has ever been tempting linguists for study. Mark Durie, having his thorough field research as basis, produced a description which to a high degree can satisfy linguistic inquisitiveness. This book contains a competent detailed - but at the same time theoretical - treatment of all the main parts of Acehnese language structure: phonology, morphology, word-classes (verbs including quality names, nominals, epistemological classifiers, prepositions) clausal syntax, syntax beyond the clause. Alongside with these general items, special attention is paid to some particular problems which are considered by Durie to be of special interest in connection with Acehnese.