Read the excerpt from Frida Kahlo by Hedda Garza.During the previous year he had introduced Kahlo to a whole new world—the group that assembled weekly at the home of the Italian-born American photographer Tina Modotti.Modotti became Kahlo’s role model. She had come to Mexico a few years earlier as the protégée of the famous American photographer Edward Weston. When Weston went home, Modotti stayed, photographing the peasants of Mexico and posing for Diego Rivera. . . .Modotti was unlike any woman Kahlo had ever met. Independent, daring, revolutionary, Modotti befriended the young painter and sponsored her membership in the Mexican Communist party.