As the title itself indicates, it is the exposition of the author's aesthetic theory, in which all his ideas about art and the philosophy of art are collected, where it has room from the analysis of the origin, truth content and life of the works, until its relation with politics and society, the philosophy of history, technology or logic, through classical studies of art philosophy, such as Kantian aesthetics, Hegelian or psychoanalytic. A new translation is offered with all the texts that constitute the official edition of Suhrkamp.