In 1580, Michel de Montaigne printed the first edition of his two books of The Essays. The success was so overwhelming that two years later a new edition appeared, augmented by a third book and with notable additions and corrections to the first two. Thus, the writing of one of the books that has had the greatest prestige and influence in Western thought was completed. Nevertheless, the Perigordian gentleman continued to work on the text of his essays until his death in 1592. Three years later, Marie de Gournay, Montaigne's fille d'alliance, presented an edition of The Essays following the instructions she given by its author, an edition that for centuries has been considered canonical, until Strowski prepared his between 1906 and 1933. Today, Marie de Gournay's is seen again, with justice, as the reference text, and serves as the basis to all reliable recent editions. This is also what the Hispanic reader will find in this edition, enriched with references to the multiple stages that the text went through and with a complete set of notes. A useful edition for the specialist and close to the common reader.