Tore Janson is a Swedish linguistic scholar who has studied and worked much in the USA. To the surprise of the sceptical, he manages to make the history of language interesting in Speak, a well written and solidly researched little book. He begins with a study of the most basic communication skills, proceeds to theorise how language developed and then traces written language and the fascinating family tree of linguistic development down through history and around the world to the present day pre-eminence of English. The book is complete with six maps tracing world linguistic development as well as helpful tables and charts that compare languages. Anyone who has taken an interest in language or has seriously tried to learn a foreign language will be interested.