# you can't judge a book by its cover

Pronunciation: US say "yoo kant juj uh buuk by its KUV-er" /ju ˌkænt ˌdʒʌdʒ ə ˌbʊk baɪ ɪts ˈkʌvɚ/; UK say "yoo kahnt juj uh buuk by its KUV-uh" /juː ˌkɑːnt ˌdʒʌdʒ ə ˌbʊk baɪ ɪts ˈkʌvə/; AUS say "yoo kahnt JUJ uh BUUK by its KUV-uh"

## Idiom

1. Outward appearances are an unreliable guide to the true character or worth of a person or thing.
   - Simple: Don't decide what someone or something is really like just from how it looks on the outside.
   - _The candidate's rumpled suit fooled everyone, but his interview was brilliant: you can't judge a book by its cover._
   - _Investors dismissed the modest startup until its profits soared, proving you can't judge a book by its cover._

Source: DictionaryAI, https://dictionaryai.com/define/you-can-t-judge-a-book-by-its-cover (written from Wiktionary data, CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/).