don't judge a book by its cover

proverb/dəʊnt dʒʌdʒ ə bʊk baɪ ɪts ˈkʌvər/ 🔊 listen

Don't judge a book by its cover is an English proverb meaning you shouldn't form an opinion about someone or something based only on outward appearance. The true value or character often lies beneath the surface.

📖 Meanings

1don't judge by outward appearance alone
"The café looks shabby, but don't judge a book by its cover — the food is amazing." — The café looks shabby, but appearances deceive — the food is amazing.
2a warning that first impressions can mislead
"He seems quiet, but don't judge a book by its cover." — He seems quiet, but there's more to him than meets the eye.

🔄 Related proverbs

appearances can be deceiving →all that glitters is not gold →looks aren't everything →

💬 Common patterns

don't judge a book by its coveryou can't judge a book...never judge a book by its cover
❓ Which proverb says you shouldn't judge someone by their appearance?