A complete translation in English of this modern text, with substantive apparatus to allow the student and serious reader to grapple in a meaningful way with this seminal text. The text includes ample footnotes, Spinoza's annotations, an interpretative essay, glossary and other indices. Focus Philosophical Library translations are close to and are non-interpretative of the original text, with the notes and a glossary intending to provide the reader with some sense of the terms and the concepts as they were understood by Spinoza's immediate audience. This is the paperback edition.