Max Horkheimer was a German philosopher and sociologist who was famous for his work in critical theory as a member of the Frankfurt School of social research. Horkheimer addressed authoritarianism, militarism, economic disruption, environmental crisis, and the poverty of mass culture using the philosophy of history as a framework. This became the foundation of critical theory. His most important works include Eclipse of Reason (1947), Between Philosophy and Social Science (1930–1938) and, in collaboration with Theodor Adorno, Dialectic of Enlightenment (1947). Through the Frankfurt School, Horkheimer planned, supported and made other significant works possible.
Max Kalbeck was a German writer, critic and translator. He became one of the most influential critics in Austria and was bitterly opposed to the music of Richard Wagner, Anton Bruckner and Hugo Wolf.
Maksym Ivanovych Kidruk is a Ukrainian travelogue and fiction writer. His professional career began in 2009 with an autobiographical novel The Mexican Chronicles, describing the journey across Mexico from the Pacific Ocean to the Caribbean Sea. Since then Kidruk traveled in 29 countries and wrote eight fiction books including travelogues, adventure stories and thrillers. He is the author of the very first Ukrainian techno-thriller Bot. Most of his stories are based on real places and events which Kidruk witnessed or heard of from fellow travelers during his journeys. From 2012, he has been working solely in the techno-thriller genre.
Max Kozloff is an American art historian, art critic of modern art and photographer. He has been art editor at The Nation, and Executive Editor of Artforum. His essay "American Painting During the Cold War" is of particular importance to the criticism on American Abstract Expressionism.
Max Kretzer was a German writer. He left school at the age of thirteen and worked in a factory for twelve years. He became a prolific and successful novelist in the social realist style, depicting common working people.