The Murder of Roger Ackroyd

words removed
71,389
marks left
22,273
words a sentence
9.4
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 Man in the Brown Suit, Agatha Christie. More twins

Agatha Christie on the shelf

14 books by Agatha Christie are on the shelf. Its fingerprint is the 3rd closest of the 14 to their average. Held out and guessed from its marks alone, the shelf names Agatha Christie as its author. 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
Semicolons0.41.27.2
Commas63.566.176.6
Colons0.81.31.6
Exclamation marks2.95.52.8
Question marks14.112.43.7
Words per sentence9.49.917.0
Dialogue59%60%22%

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

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