This book discusses the scope and development of the science of language evolution - a newly emergent field that investigates the origin of language. The book is addressed to audiences who are not professionally involved in science and presents the problems of language origins together with introductory information on such topics as the theory of evolution, elements of linguistic theory, the neural infrastructure of language or the signalling theory.

The study of language becomes particularly attractive when it is not practised as an isolated descriptive enterprise, but when it has wide-ranging implications for the study of the human mind. Such is the spirit of this book. While categorisation may be the single most basic cognitive process in organisms, and as an area of inquiry, it is fundamental to Cognitive Science as a whole, at the other end of the spectrum, high-level cognition is organised and permeated by language, giving rise to categories that count and function as concepts. Working from considering the philosophical assumptions of the cognitivist perspective, this study offers an argument for a very productive understanding of the relation between concepts, categories, and their theoretical models.