On Certainty by Ludwig Wittgenstein

Published 1969 · 32,175 words · about 4 hours at an average pace

How hard is On Certainty to read?

On Certainty scores 75 out of 100 for difficulty on ReadingRate, making it very challenging. The score is a weighted composite of nine measures: four of how hard the prose is to parse, five of how hard the meaning is to extract.

Vocabulary: 62 out of 100
Ordinary words used in extraordinary ways, which is its own difficulty.
Sentence structure: 55 out of 100
Short, plain numbered remarks.
Abstraction: 92 out of 100
Doubt and certainty examined at the limit of what can be said.
Information density: 78 out of 100
Each remark carries a whole move in an argument.

How On Certainty is regarded

On Certainty holds a literary regard score of 87 out of 100, weighing its place in the canon, its critical reception, its influence on other writers, and the standing of its author. Regard is measured separately from difficulty: a demanding book is not necessarily an admired one.

About the author

Ludwig Wittgenstein