Thin Books Are Dangerous


Samuel van Hoogstraten, Perspective View of a Corridor, 1662, oil on canvas
“Every door leads deeper. Every step farther from certainty.”
(Samuel van Hoogstraten, Perspective View of a Corridor, 1662, oil on canvas)

Prefatory Note

In my youth — now roughly four decades past — while studying the slender yet profound Itinerarium Mentis in Deum of St. Bonaventure, there arose in my mind a simple observation: “Thin books are dangerous.” By their brevity, they conceal depths which the unwary may mistake for shallows. By their compactness, they pierce more swiftly, and leave marks more enduring than tomes of a thousand pages.

The small variations presented below draw their form, though not their genius, from the fictions of Jorge Luis Borges — that master of mirrors, labyrinths, and forgotten libraries. If there is any virtue herein, it is owed to his example; if there is error, it is mine alone.

May the reader proceed with care, for the thinnest books, and perhaps the thinnest tales, are those most difficult to escape.


“The shortest books require the longest penance.”
Anonymous marginal note, Biblioteca Laurenziana


I. The Library of Thin Books

In the city of Aram, whose streets no cartographer has ever agreed upon, there was once a secret library known only to a few scholars and fewer fools. It was said to contain the sum of human knowledge, but organized strangely: the thick books were shelved in dusty catacombs, seldom touched, while the thin books were kept in a bright chamber at the center, on shelves of polished cedar.

The Keeper of the Library explained this arrangement to all who entered: “The thick books are for forgetting. The thin books are for believing.”

Each thin book contained a single idea, expressed so perfectly that it resisted all argument. Sovereignty Belongs to the Strong was one book. The World is a Dream of the Gods was another. Still another was simply titled Obey.

Visitors who read the thick books emerged thoughtful and burdened, full of hesitations, counterexamples, and second thoughts. Visitors who read the thin books emerged transformed: resolute, fervent, certain.

Over time, it was not the heavy tomes that shaped Aram’s kings, priests, and scholars, but the thin volumes, read once and carried forever.

It is said that the city of Aram fell, not through invasion, nor famine, nor pestilence, but because, in the end, its citizens each lived by the idea of a different thin book, and could no longer understand one another.

The Library still stands, or so the story goes, though its doors are sealed and the books grow thinner by the century.

There is a final book, the thinnest of all, placed at the highest shelf where none but the Keeper can reach. It contains no words at all.

Its title is: Certainty.



II. The Shadows of the Books

There is a city — it does not matter which — where it is rumored that a second library exists beneath the great Library of Learned Tomes.

The surface library, the Library of Learned Tomes, is a noble place: its corridors are vast, its tomes heavy with ink and argument, and its readers slow, uncertain, weighed down by the burden of complexity. No truth is simple there; every assertion is marked and belied by a hundred footnotes, every conclusion bruised by rebuttal.

But below, beneath stone and time, there is another library. It is said to be vast but weightless. There, one finds only thin books — so thin they seem at times to flicker in the light, as if they might vanish.

Scholars, sensing the rumors, sometimes descend. They find books titled with dangerous simplicity: Justice is the Right of the Victorious, History is the Story We Tell Ourselves, The Future is Written.

Each thin book feels familiar. And well it should. For these thin books are the shadows of the thick books above¹: each vast, tangled treatise, compressed into a single, unassailable maxim.

The discovery at first seems marvelous. Why wrestle with a thousand pages when the essence can be grasped in a sentence? Why debate, when the answer can be carried in one’s pocket, ready for all occasions?

But the thin books are not summaries; they are distortions. They are what remains when doubt, nuance, and contradiction are stripped away. They are the husks of thought — seductive because they seem lighter, easier, final.

In time, those who read only the thin books come to mistrust the thick ones. They grow impatient with questions, contemptuous of ambiguity, zealous for a clarity that admits no appeal.

Some say that it was not neglect but the rise of the thin books that doomed the upper Library. That the heavy volumes grew dusty because the city’s rulers and citizens alike began to prefer the glimmer of certainty to the slow, earned labor of understanding.

In the end, the Library of Learned Tomes collapsed inward like a drained well. And the shadow library, weightless and triumphant, remained.

Somewhere, perhaps, it still remains.

Somewhere, perhaps, it is growing.



III. Coda: A Reflection in the Labyrinth

Some say that even the tale you have just read — the account of the thick and the thin, the surface and the shadow — is itself no more than a thin book: a single idea, polished to gleam, shorn of its necessary doubts.

If so, it is but one more glimmer in the labyrinth.

One more reflection upon reflections, cast by a candle already guttering.

One more danger to remember, and to forget.


IV. Scholium

¹ Cf. the lost Tractatus de Umbris Librorum (“Treatise on the Shadows of Books”), attributed to the forgotten scholar Balthasar of Istria (fl. late 13th century), who wrote: “The greater the volume, the more labyrinths it contains; the thinner the shadow it casts, the more swiftly it pierces the heart.” No complete manuscript survives, though fragments are said to be embedded in certain marginal glosses of the Biblioteca Laurenziana. Some dispute the existence of Balthasar himself, suggesting he is merely the invention of later compilers seeking to dignify their own thinness with the patina of lost antiquity.