The Mystery of the Blue Train

words removed
71,080
marks left
21,359
words a sentence
9.8
most used mark
"

Its punctuation fingerprint: each mark's share, on the same scale as every book on the shelf.

Its punctuation twin, the closest fingerprint on the shelf: The Problem of Cell 13, Jacques Futrelle. More twins

Agatha Christie on the shelf

14 books by Agatha Christie are on the shelf. Its fingerprint is the 13th closest of the 14 to their average. Held out and guessed from its marks alone, the shelf takes it for Edgar Wallace. Of the 623 other authors on the shelf, Agatha Christie's punctuation is closest to Edgar Wallace's.

Agatha Christie's average fingerprint

Agatha Christie on the numbers page

Marks per 1,000 words, except words per sentence and dialogue (the share of words inside quotation marks).
This bookAgatha Christie's averageEvery book's median
Semicolons3.61.27.2
Commas71.466.176.6
Colons1.21.31.6
Exclamation marks3.25.52.8
Question marks12.912.43.7
Words per sentence9.89.917.0
Dialogue60%60%22%

Every mark in reading order, left to right, top to bottom. Sentence endings are pink.

Read your own or go back to the shelf

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