People who take the saying "don't judge the book by it's cover" literally

Does anyone else notice this on amazon.com?

Here’s an example: I was looking up reviews on the book "How to Say It At Work: Putting Yourself Across with Power Words, Phrases, Body Language, and Communication Secrets ", and I saw this sentence…

“I did not buy the book to memorize long lists of words and phrases - the “good” ones and the “bad” ones.”

OKAAAAAY! Now, why would this person buy a book that was titled “How to Say It”, and not expect a book of long lists and phrases? :confused:

I see something like this everytime I look up a book review.

Oops, it is “book by ITS cover”