One particularly good reason to love Paris in the fall—of even-numbered years, at least—is the biennial "Mois de la Photo." It's held in galleries, cultural centers, museums, and other sites around the city, ostensibly during November, but in practice from the last week of October through December, early January, or even later. Since 1980, this freewheeling celebration has allowed an ever-growing audience to discover the masters and contemporaries of world photography, from Eugène Atget and Henri Cartier-Bresson to Malian portraitist Seydou Keita and Japanese avant-gardist Nobuyoshi Araki. Among the highlights of this year's official selection: a century of fashion photos from the French National Archives; a spotlight on women photographers with solo exhibits devoted to Mary Ellen Mark, Lisette Model, and others; and a three-part panorama of Cuban photography since the 1960's. In addition, some 90 galleries will have booths at the Carrousel du Louvre for the annual Paris-Photo market (Nov. 14—17). And, as with any pioneering institution, the main event is now supplemented by countless concurrent unofficial shows. (For tickets and information: —Miriam Rosen