Francisco Goya's "Letters of Love and Friendship" to Martin Zapater establish a connection between Goya's private life and his work. The correspondence reflects the painter's daily life in Madrid during the period from 1775 to 1800. He refers to friends and colleagues, entertainers, bullfighters and work in progress. The letters are translated within the context of their time and the translator provides biographical data and notes explaining difficult, archaic or dialectal words and expressions. The bibliography should make this text relevant to interdisciplinary scholars of Goya and to those specializing in 18th-century studies.