The Flesch-Kincaid readability test
is a very simple metric that calculates how long the sentences
and how big the words used in a text are.
Complicated, long words used in scientific jargon will give
low readability scores.
Carelessly written text with run on sentences and lots of which
and that will score low on the readability scale.
Short sentences with simple words are considered more readable.
Toby Donaldson at SFU has an implementation of Flesch-Kincaid in python. I decided to check how the three chapters of the book score.