In Signs, Language and Communication readers familiar with the arguments of Professor Harris' previous work, including Signs of Writing, will find those ideas developed here to cover not just writing, but aspects of art, design and manufacture. Roy Harris proposes a new theory of communication. He begins with the premise that the mental life of an individual should be conceived as a continuous attempt to integrate the present with the past and future. He concludes by arguing that communication should be viewed as both a product and a resource of this constant act of integration.