in both the U.S. and Britain. Her next novel, The Left Hand of Darkness, was a Hainish universe story exploring themes of gender and sexuality on a fictional planet where humans have no fixed sex. The book was Le Guin's first to address feminist issues, and according to scholar Donna White, it "stunned the science fiction critics"; it won both the Hugo and the Nebula Awards for best novel, making Le Guin the first woman to win these awards, and a number of other accolades. A Wizard of Earthsea and The Left Hand of Darkness have been described by critic Harold Bloom as Le Guin's masterpieces. She won the Hugo Award again in 1973 for The Word for World is Forest. The book was influenced by Le Guin's anger over the Vietnam War, and explored themes of colonialism and militarism: Le Guin later described it as the "most overt political statement" she had made in a fictional work. Le Guin continued to develop themes of equilibrium and coming-of-age in the next two installments of the Earthsea series, The Tombs of Atuan and The Farthest Shore, published in 1971 and 1972, respectively. Both books were praised for their writing, while the exploration of death as a theme in The Farthest Shore also drew praise. Her 1974 novel The Dispossessed again won both the Hugo and the Nebula awards for best novel, making her the first person to win both awards for each of two books. Also set in the Hainish universe, the story explored anarchism and utopianism. Scholar Charlotte Spivack described it as representing a shift in Le Guin's science fiction towards discussing political ideas. Several of her speculative fiction short stories from the period, including her first published story, were later anthologized in the 1975 collection The Wind's Twelve Quarters. The fiction of the period 1966 to 1974, which also included The Lathe of Heaven, the Hugo Award-winning "The Ones Who Walk Away From Omelas" and the Nebula Award-winning "The Day Before the Revolution", constitutes Le Guin's best-known body of work. Wider exploration Le Guin published a variety of work in the second half of the 1970s. This included speculative fiction in the form of the novel The Eye of the Heron, which, according to Le Guin, may be a part of the Hainish universe. She also published Very Far Away from Anywhere Else, a realistic novel for adolescents, as