Gabriel de Saint-Aubin chronicled French life at the height of the Enlightenment, painting and drawing the city’s architecture, theaters, Salons, and domestic life with equal vigor and charming flourish. Beloved by connoisseurs of 18th-century French art, his name is nearly unknown in other circles. That was unacceptable to the Louvre, which, together with The Frick Collection, is presenting a long-overdue survey of his paintings, etchings, and drawings, “Gabriel de Saint-Aubin (1724–1780),” through January 27.

Though isolated in the last, troubled years of his life, Vincent van Gogh sustained his friendship with artist and poet Émile Bernard through correspondence. Now 20 of Van Gogh’s own revealing letters are on display in “Painted with Words: Vincent van Gogh’s Letters to Émile Bernard” at the Morgan Library and Museum. These never-before-exhibited letters—complete with sketches and descriptions of some of the artist’s most important works—are shown alongside 22 paintings, drawings, and watercolors that the two artists exchanged or discussed. Through January 6.