Klara is an Artificial Friend, a humanoid robot designed to provide companionship for children, and she tells her story from behind the glass of a store window, hoping a customer will choose her. Kazuo Ishiguro's novel follows Klara as she is purchased by Josie, a teenager whose health is fragile, and enters a household where she must navigate human emotions she can observe but never fully comprehend. Ishiguro, who won the Nobel Prize in Literature, has explored artificial beings before, but Klara and the Sun examines machine consciousness with particular tenderness. Klara runs on solar power and worships the sun as a source of life and healing. Her observations are filtered through her programming, which sometimes misleads her about human motivations and sometimes allows her to perceive what humans miss. The novel hints at a world transformed by genetic editing and automation, but keeps its focus intimate, on one robot's devotion to one girl. Klara's reliability as a narrator is uncertain; we cannot know what she experiences, whether her apparent feelings are genuine or simulations. This uncertainty mirrors questions the book raises about all consciousness, artificial or biological. Readers who appreciated Ishiguro's previous explorations of memory and identity will find this novel a worthy continuation, while newcomers will discover a writer of remarkable delicacy.