The Abbé Mallet’s Unsigned Contribution to the Encyclopédie, pp. 691-712, by Reginald McGinnis See above 3 illustrations of the art of writing – l’Art d’Ecrire – from the Encyclopédie (1751-72), compiled by Denis Diderot (1713-84) and Jean-Baptiste le Rond d'Alembert (1717-83).