You begin to study in a serious and determined way. " I have to hit the books this weekend; I have two exams next week."

They are pleased/annoyed with you. "Noah is trying to be in the good books of his manager by working overtime."

You disregard or ignore established rules or conventions."In times of crisis, sometimes you have to throw the rulebook out of the window and be flexible."

The process where you ensure that the amount of money coming in and going out matches up to what your records show.

You are a mystery. It can also mean you are something that cannot be understood.

An outstanding or unusual achievement or event. "Last night's game was one for the record books!"

In my opinion/according to my beliefs/as far as I'm concerned. "The government's doing an awful job, in my book."

You can’t judge a person, experience, object, etc. just by what you see. “She doesn’t seem like she is the smartest, but you can’t judge a book by its cover.”

You understand their thoughts or intentions easily. "She's an open book; you can read her like a book, and she'll tell you exactly what's on her mind."

You accept that something is true without making sure that it is. " I just took it as read that anyone who applied for the job would have the qualifications."

A commonly used method to trick or deceive someone. “He told me that his dog ate his homework. That’s the oldest trick in the book.”

You charge or punish them to the full extent of the law or regulations. "If caught, they'll throw the book at him for breaking into the secure facility."

You bring it to an end. "It's time to shut the book on that chapter of our lives and move forward."