This site contains the Latin texts of three works by Benedictus de Spinoza: Ethica ordine geometrico demonstrata, Tractatus de Intellectus Emendatione (TIE), and Tractatus Politicus (Tract. Pol. or TP), together with a selection of the relevant correspondence (Epistolae). For an introduction to this project, see the Editor’s preface. For updates consult the revision history. The works can also be read in parallel with an English or French translation.