Your favorite bits of language or style

I come here looking for your appreciation of the little things in some of your favorite works. Here are mine:

Clarke’s capitalization of otherwise common nouns in Piranesi.

Bernard Shaw’s lack of apostrophes in contractions and other various attempts at spelling reform.

Cormac McCarthy’s minimal use of punctuation.

These are maybe some basic examples but what other small little choices of language or style do you love in books?