Science fiction has existed as a literary genre for well over a century. Ursula K. Le Guin, who emerged as a popular science fiction and fantasy writer in the 1960s, has not only witnessed, but also experienced first-hand the shifts and transformations of this increasingly popular genre. This study, ideal for school and undergraduate students, explores her fantastical worlds and several of her famous works. It also looks at Le Guin's life and long career, as well as her numerous literary achievements. This comprehensive analysis of Le Guin's work will leave readers eagerly anticipating her future endeavours. After a biography that focuses on Le Guin's interest in science fiction, this study delves into analyses of Le Guin's most well-known works, with emphasis on plot, as well as thematic and character development. Works covered include: "The Wizard of Earthsea" (1968); "The Left Hand of Darkness" (1969); "The Tombs of Atuan" (1970); "The Farthest Shore" (1972); "The Lathe of Heaven" (1973); "The Dispossessed: An Ambiguous Utopia" (1974); "The Eye of the Heron" (1978); and "Tehanu" (1990).