read like a book

• read like an open book

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read like a book (third-person singular simple present reads like a book, present participle reading like a book, simple past and past participle read like a book)

1. (transitive, simile) To be able to discern someone's thoughts from their body language or other behavior, especially in great detail and with little effort.

   I love playing poker against Maria because I can read her like a book.

• know like a book