The editor opens by establishing Dialectic of Enlightenment as the Frankfurt School’s most influential and theoretically concentrated work. Written in exile by Horkheimer and Adorno between 1939 and 1944, its declared aim was to account for why humanity, rather than advancing toward a genuinely humane condition, was descending into a new phase of barbarism. The book’s loose structure—five largely disconnected chapters plus shorter notes—belies its ambition: by connecting archaic myth to modern political terror, it argues that German National Socialism was not an aberration of Western history but a product of its deepest logic. The core paradox driving the argument is that myth and enlightenment are not opposites but mutually constitutive. Reason, from its origins, has been bound up with domination of nature, inner life, and society, and this entanglement culminates in fascism and the culture industry.

Section 1: Authorship

Despite the book’s dense, allusive character delaying its wide reception, it eventually became one of Critical Theory’s most discussed texts. Horkheimer and Adorno consistently maintained joint responsibility for every sentence. However, evidence from posthumous papers and oral reports allows a more granular picture. Scholars widely agree that Horkheimer wrote the title essay (“The Concept of Enlightenment”) and the de Sade chapter, while the chapters on Odysseus and the culture industry can be attributed primarily to Adorno. “Elements of Antisemitism” originated with Horkheimer and was heavily revised by Adorno. The “Notes and Sketches” were Horkheimer’s alone, while the “Postscripts” added to some of these notes were Adorno’s.

Section 2: Theoretical Genesis

The book fits naturally into Adorno’s intellectual trajectory but represents a pronounced break within Horkheimer’s. In the 1930s, Horkheimer’s Critical Theory retained confidence in translating Enlightenment ideals into materialist, practically oriented form. By the early 1940s, that confidence had collapsed under the weight of political experience: The failure of working-class revolution in developed capitalist societies, the consolidation of fascism in Europe, and the repressive character of Soviet socialism all drove the transition from a reformist critical theory to a more radical—and politically pessimistic—critique of instrumental reason. Also contributing to this shift was their analysis of the manipulative power of mass society in the West.

Two internal changes at the Institute accelerated this shift. First, the break with Erich Fromm, who had pioneered analytic social psychology within the Institute but moved away from Sigmund Freud’s drive theory toward a more socially oriented conception of motivation. Horkheimer moved in the opposite direction, finding in Freud’s biological pessimism an accurate expression of the subject’s historical disempowerment. Second, Adorno’s move from Oxford to New York inaugurated their period of most intensive collaboration.

Early planning discussions from 1939 show that Horkheimer and Adorno considered structuring their joint work as a critique of psychoanalysis, intending to subject its concepts to the same kind of functional transformation Marx had applied to classical political economy. In the finished book, psychoanalytic ideas like Freud’s the return of the repressed operate implicitly rather than explicitly, surfacing most visibly in the chapters on the culture industry and antisemitism. Adorno confirmed in a 1968 essay that “Elements of Antisemitism” directly shaped the empirical research that eventually produced The Authoritarian Personality.

Karl Marx was another theoretical influence, but the Marxian model of history through class struggle is largely displaced in the text by a broader account of the antagonism between domination of nature and subjugation to it. Particularly decisive was Friedrich Pollock’s theory of “state capitalism,” which held that fascism and Soviet bureaucratic socialism represented a qualitatively new order in which political administration had superseded the market as the dominant social mechanism. Building on this, Horkheimer developed a theory of “rackets”—organized groups whose defining function becomes the perpetuation and expansion of their own power—as a generalized historical model of domination. These economic and political arguments provide the social-theoretical background to the book but appear within it only in fragmentary form. The authors had come to regard Marxian categories as limited to the now-superseded liberal phase of capitalism.

Section 3: Textual Variants and Publication History

The initial decision to restrict the 1944 edition to roughly 500 copies and distribute them selectively reflected more than financial precarity. For the 1947 printed edition, the text underwent substantial revision, and the editor identifies four categories of change: removal of time-specific references; stylistic clarifications, including the replacement of “mass culture” with “culture industry”; greater precision in distinguishing fascism from monopoly capitalism in general; and, most extensively, the substitution of charged Marxian terminology (“proletarians,” “exploitation,” “monopoly”) with neutral equivalents. Political caution was one motive, but the editor emphasizes that by the mid-1940s, the authors had moved away from a Marxism premised on the primacy of economics, and the revised terminology reflects this shift.

The question of a new German edition arose in the early 1960s. Pollock initially judged the book unsuitable for mass circulation. Adorno favored republication more readily than Horkheimer, whose hesitations were primarily political. An Italian translation by Renato Solmi appeared in 1966 with numerous textual changes, justified in a draft preface composed by Pollock on behalf of both authors; it argued that Soviet terror had co-opted the book’s critical terminology, rendering it unusable without revision. When a 1967 article in a Frankfurt student newspaper cataloged 29 amended passages and charged the authors with abandoning Marxism, the controversy likely reinforced the decision to leave the 1969 authorized German edition largely intact.