The Voltaire Foundation publishes in hardback and online (in Electronic Enlightenment) the correspondences of key French thinkers of the seventeenth and eighteenth centuries, including those of Voltaire, Rousseau, Bayle, Graffigny, Morellet and La Beaumelle. Newly discovered letters are regularly added online.
The books can now be ordered via Liverpool University Press by following the links below:
Correspondence Complete De Rousseau
Correspondance De Madame De Graffigny
Correspondance de Pierre Bayle
Correspondance générale de La Beaumelle
Voltaire’s correspondence has been called his masterpiece, and Theodore Besterman’s edition (1968-1977), containing 21,221 letters is the reference edition.