Luxury has been associated with superficiality, consumerism and meaninglessness throughout the history of serious philosophical thought. How could something so obviously about the external possibly be existentially significant or even a profound concept? Luxury Philosophy carves out alternative modes of understanding the luxurious arguing that the negative characterization by 18th- and 19th-century philosophers of luxury as dissatisfaction or as an evil enjoyed by the idle rich gave way in the 20th century and beyond to more positive, even potentially revolutionary, theories of luxury as voluptuousity, squander, uselessness and abundance. John Armitage charts the history of continental theories of luxury which embody a wide variety of disciplines and methods, including philosophy, sociology, and cultural studies, revealing the depth of contemporary critical luxury studies.