I just read a valuable forthcoming article about bias in college syllabi. I don’t want to “scoop” that piece and won’t address its claims here. It did get me thinking more broadly about why some texts are widely assigned in college courses.

• Fashion: When I was a humanities-oriented undergraduate in the 1980s, it seemed as if every professor assigned Walter Benjamin’s The Work of Art in the Age of Mechanical Reproduction (1935). I don’t hear much about that book these days, and other texts are more fashionable. Such changes presumably reflect shifts among intellectuals as well as prominent developments in the world. For instance, Benjamin’s book seemed prescient when culture was first turning digital but may now seem dated.
• Ideological proclivities: Individual professors tend to prefer to assign works that they agree with. I recognize that many of my colleagues intentionally choose texts that they would criticize, but I am asserting that there is some degree of bias in the whole population of professors, with variations by discipline. By the way, a proclivity is not a bias if it’s reflective, acknowledged, and open to change. The main concern is unconscious bias.
• Genre and style: It is much easier to use a text that is addressed to a general reader and aims to interest people in the topic and influence their behavior, rather than a text that is written for academic colleagues and meant to contribute to a literature. One issue is jargon (specialized terminology), but some jargony works are widely assigned anyway. I think the main issue is the purpose of the work. If it aims to influence a public audience, it is more likely to be assigned.
• Marketing, broadly defined: Like everyone else, academics are influenced by marketing. I am not thinking of the deliberate advertising and promotion of specific academic books, because those investments are very modest. I am thinking about the difference between any academic book and a mass-market paperback that is sold in bookstores and reviewed in The New York Times. The latter will be used in more courses. By the way, ideological bias could be relevant here, but it would be the bias of commercial publishers and mass-circulation journals, not academics.
• Personal branding: Some authors, including some professors, turn themselves into recognizable personalities. Nowadays, that means that they are prominent on broadcast and social media, and they exemplify a particular position or perspective. Academics quickly think of their works when deciding what to assign.
• Hedgehogs, not foxes: When you’re designing a syllabus, you often want texts that clearly and directly represent a particular view, even if you are also looking for contrary views. For instance, in teaching 20th century political philosophy last spring, I wanted to include fascist texts. This was certainly not an endorsement; I just thought that we should analyze their views. I went looking for clear expressions of fascism, not subtle or equivocal arguments. I assigned a speech by Mussolini (probably ghost-written by Gentile). I did not end up using Heidegger’s 1933 “Rector’s Address” because it’s too complicated and addresses too many things at once. Authors and individual texts are more attractive if they say one thing clearly (like the proverbial hedgehog) rather than many things with various qualifications and complexities (like the fox). Therefore, our syllabi fill up with works by “hedgehogs.”

See also: on hedgehogs and foxes; trying to keep myself honest; don’t confuse bias and judgment