This journal article on banned book discusses how Ray Bradbury's Fahrenheit 451 frames the issues around censorship.

Ray Harris discusses the four themes in Fahrenheit 451: conformity, political correctness, happiness and entertainment.

The Fahrenheit 451 themes of censorship and knowledge versus ignorance are discussed in the SparkNotes website.

This thesis focuses on three major themes in Bradbury’s work—television as an enforcing agent of amusement over critical thinking, television and femininity in the domestic sphere, and television as a fusing agent of news and entertainment—and the ways in which postwar ideologies of and
anxieties about media, gender, and pleasure informed these themes.

CliffNotes examines the context of Ray Bradbury's Fahrenheit 451. Critics find Bradbury's most interesting years the post-World War II years, 1947-57, a period that roughly corresponds to a time when science fiction authors began to approach their subject matter seriously and were creating characters who had psychological complexity and ambiguity.

References to book burning date back far into history: The Chinese Emperor Shih Huang Ti “thought that if he burned all the documents in his kingdom, history would begin with him” in 213 BCE. In the modern sense, it’s very much a mid-20th century idea, very much a propaganda thing that happens during World War II.

This essay examines Bradbury and the problems of academic vision as well as the possibilities and pessimisms of postwar America.

This essay explores Bradbury's novel "Fahrenheit 451" as a piece of dystopian fiction which unlike typical dystopian fiction does not focus on a ruling elite nor does it portray a higher society, but rather, it portrays the means of oppression and regimentation through the life of an uneducated and complacent, though an ultimately honest and virtuous, working-class hero (Montag).