🗓️ Idiom: An Open Book
💬 Meaning
- Someone who is easy to understand or very transparent
- A person who shares their thoughts, feelings, or actions openly
🧠 Example Sentences
- You don’t need to guess what he’s thinking. He’s an open book.
- In business, she’s an open book and always communicates clearly.
- He talks about his mistakes and successes like an open book.
🏛️ Origin
The idiom “an open book” comes from the image of a book that is open and easy to read. If someone is like an open book, their thoughts and actions are clear, just like reading printed words. This phrase has been used since the 1800s.
📝 Practice Exercises
Fill in the blank:
She shares everything about her business journey. She’s __________.
Answer
an open book
Multiple choice:
What does “an open book” mean?
A) Someone who is difficult to understand
B) A person who hides their thoughts
C) Someone who is open and honest
D) A book that teaches business skills
Answer
C) Someone who is open and honest
Rewrite the sentence:
He’s easy to understand because he never hides anything.
Answer
He’s easy to understand because he’s an open book.
ℹ️ Other Useful Pages
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👉 Ethics Idioms for Business
👉 Business English Idioms List
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