DON'T JUDGE A BOOK BY ITS COVER.

Don't judge a book by its cover.: translation

Don't judge a book by its cover. & You can't tell a book by its cover.

Prov. Do not draw a conclusion about someone or something just from outward appearances. •

Just because Sam dresses sloppy doesn't mean he's a bad person. Don't judge a book by its cover.

•

Jill: How can you be so sure this will be a boring movie? Jane: The poster for it is so boring. Jill: Don't judge a book by its cover!