This book "supplies a vocabulary of English words and idiomatic phrases 'arranged … according to the ideas which they express'. The thesaurus, continually expanded and updated, has always remained in print, but this reissued first edition shows the impressive breadth of Roget's own knowledge and interests."
An important aspect of the analysis of written language is to explain its relationship to spoken language. The volume focuses on how morphology influences forms of spelling. It brings together 8 papers, including a review of the historical development of German and Dutch orthography, a paper about the possibilities for marking morphological structure that exist in German spelling, and about the effects of such marking on the process of reading.