I'm sure the author himself would be the first to admit that the intended scope of this book is ambitious to say the least, but the brilliance with which he nails the salient points to the page is breathtaking. The subtle nuances of budding social interaction are trailed along the printed page like so many pearl necklaces, inviting the reader to explore the development of language at a most important stage in human growth. The astounding level of research, cross references and supporting evidence mean that although this book is easily understood by the lay man, the author has not betrayed his academic roots. I fully expect this book to be on many a reading list come September. Jonathon Blyth, academic, adventurer, guru. To this list we now must add author.