The first two parts of the book present an historical grammar of sentential complementation. Part one traces the emergence of new structures, describing how finite complements first developed, and tracing the grammaticalization of the quotative construction. Part two examines the language's functional history. It looks at the evolution of linguistic structures, showing for example how finite complements and embedded questions became more widespread as other parataxis and non-finite complements receded. In the final part of the book the author puts these changes in a broader typological perspective and compares the development of Akkadian to similar processes in other languages. The emergence of finite complementation may, he suggests, be an adaptive process, related to the growing complexity of communication.

This book throws new light on the nature of linguistic change and offers fresh insights on a language that has rarely been presented to non-specialists, despite its enormous historical importance.