Our new public Library is an architectural marvel with an enormous skylight & no obvious lights - so when I pick up a book with an interesting title I often put it back as the blurb on the back cover is unreadable, just like computer screens!
10 book cover rules unfortunately doesn't mention the back cover.

Some expert in our state Motor Registry recently decided number plates would be the same length, but a bit narrower & have black letters on a white background, instead of the decades old black on yellow, making them harder to read.

rant over