Gilman's most celebrated work, the short story "The Yellow Wallpaper" (1892), is a semi-autobiographical critique of the medical treatment imposed on women and a powerful depiction of female confinement and mental illness. Her nonfiction treatise "Women and Economics" (1898) argued for women's financial independence and became a landmark feminist text. She also published "The Home: Its Work and Influence" (1903) and founded and edited the magazine The Forerunner (1909–1916), in which she serialized her utopian novel "Herland" (1915), envisioning a society composed entirely of women.
Through her fiction, essays, and lectures, Gilman challenged conventional gender roles and left a lasting legacy in feminist literature and social theory.