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5 Common BOOK Idioms

Updated: Sep 29, 2020

It's time to hit the books! Learn these common idioms and start using them today in English conversations.


"Hit the books" - to study

"I can't go out tonight. I need to hit the books because I've got an exam tomorrow."

"Why don't you turn off the TV and hit the books instead?"


"By the book" - if you do something "by the book," you do it according to the rules or official instructions

"We tried it your way and failed. Let's try it by the book this time."

"He's a dirty player. He doesn't go by the book."


"An open book" - used to refer to someone who is simple to understand and learn about

"You don't have to worry about him lying to you. He's an open book."

"Go on. Ask me anything. I'm an open book."


"Book smart" - used to refer to someone who has learned a lot by reading, but who doesn't have common sense

"His brother's book smart, but he doesn't know the first thing about human relationships."

"If you want to know anything about Eastern philosophy, ask Rita. She's book smart."


"Don't judge a book by its cover" (proverb) - don't judge someone or something by outward appearance alone

"He may look innocent, but don't judge a book by its cover."

"Don't let her tattoos and piercings scare you. She's the nicest person I know. A classic case of not judging a book by its cover."


Do you know anyone who always goes by the book? Let me know in the comments!


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