Bloom has been described as "probably the most famous literary critic in the English-speaking world". He has written more than 50 books, which have been translated into over 40 languages. He edited hundreds of anthologies concerning literary and philosophical figures for the Chelsea House publishing firm.

Lévy's activism, publications, and ideas have been the subject of much controversy. His viewpoints can be broadly described as liberal internationalist, adhering to general tenets of Western liberal philosophy.

Since the 1960s, Chomsky has become more widely known as a libertarian socialist intellectual, anarchist, and political dissident. After writing an article on the spread of fascism following the fall of Barcelona in the Spanish Civil War, he is said to have begun identifying with anarchist politics.

Blume has authored books such as 'Are You There God? It's Me, Margaret', 'Tales of a Fourth Grade Nothing', 'Deenie', Blubber', and more. Her novels have sold over 82 million copies, and have been the subject of both acclaim and controversy due to covering topics such as teen sex, masturbation, menstruation, birth control and death.

Grossman was well known for his book, The Law of Accumulation and Breakdown of the Capitalist System, which is a study in Marxian crisis theory.

Kirchheimer worked as a research analyst for the OSS, the precursor to the CIA, from World War II until 1952.

Much of Bloch's work is focused on an optimistic teleology of the history of mankind. He is best known for his three volume work, The Principle of Hope, in which he explores utopianism and the idea of absolute perfection.

Benjamin wrote several essays about aesthetic theory, literary criticism, and historical materialism.

His works gained most of their popular renown after his death.

Kracauer notably argued that realism is the most important function of cinema.

Neumann is best known for his theoretical analyses of Nazism.

From 1943 to 1945 he worked for the Office of Strategic Services (OSS), the precursor to the CIA. He also spied for the Soviet Union during WWII under the code-name “Ruff”.

Löwenthal became the leading expert on the sociology of literature and mass culture at the Frankfurt School, as well as the managing editor of the journal it launched in 1932. After moving to America, he worked with the Office of War Information in Washington.

Marcuse criticized what he saw as new forms of “social control”, including Soviet communism, during this period. His book “Eros and Civilization” helped shape the LGBT liberation movement and subcultures of the 1960s. Marcuse also worked for the Office of Strategic Services (OSS), the precursor to the CIA, from 1943 to 1950.

Fromm was the author of “Escape from Freedom”, which is viewed as one of the founding works of political psychology.

In the early 20th century, Horkheimer served as director of the Frankfurt School for Social Research. As director, he changed the Frankfurt School from an orthodox Marxist school to a heterodox school for critical social research.

Block is best known for his 1976 book, "Defending the Undefendable", in which he takes contrarian positions on currently illegal acts which he believes are victimless, or would actually benefit the public.

Friedman advocated a volunteer military, freely floating exchange rates, abolition of medical licenses, a negative income tax, and more. In 1976, he won the Nobel Prize for Economics. His monetary theory influenced the Federal Reserve’s response to the 2007 global financial crisis.

Rand promoted laissez-faire capitalism, individual and property rights, and related sentiments. Although she was opposed to the overall concept of libertarianism herself, her character and ideas are generally associated with the modern libertarian movement.