Altered Carbon, written by Richard K. Morgan, is a science fiction novel set in a future where consciousness can be transferred to different bodies, known as sleeves. The story follows Takeshi Kovacs, a former soldier turned private investigator, as he is hired to solve a murder mystery. With its gritty noir atmosphere, complex characters, and exploration of themes like identity and the commodification of human bodies, Altered Carbon is a gripping and thought-provoking cyberpunk novel.