What Does “Read up on sb” Mean?
“Read up on sb” means to find out information about someone by reading. It usually involves researching or learning more about a person.
Introduction
The phrase “Read up on sb” is a common English phrasal verb used when you want to learn more about a person by reading books, articles, or online sources. The “sb” stands for “somebody,” which means it refers to a person. Understanding the “Read up on sb meaning” is useful because it often appears in conversations about research, preparation, or curiosity about others. Whether you are preparing for a job interview, meeting someone new, or simply curious, this phrase helps express the act of gathering information by reading.
Quick Info Box
- Phrasal verb: Read up on somebody
- Type: Transitive
- Level: B2 (Upper-Intermediate)
- Short meaning: To research or study information about a person by reading
Structure (Grammar Rules)
“Read up on sb” is an inseparable phrasal verb. This means you cannot separate the verb “read up” from the preposition “on.”
Pattern: read up on + somebody
Example: I need to read up on her before the meeting.
How to Use Read up on sb?
Use “read up on sb” when you want to say that you have studied or researched information about a person by reading. It is often used in formal and informal contexts.
You can use it in sentences about preparation, curiosity, or research. It usually takes an object (the person you are reading about) after “on.”
Examples
Before the interview, I read up on the CEO to understand her background better.
- I needed to read up on John before our business meeting.
- She read up on her new colleague to find common interests.
- We read up on the author of the book to learn more about his life.
- He read up on the politician’s history before the debate.
- They read up on the professor to prepare questions for the lecture.
These examples show how to use “read up on sb in a sentence” naturally.
Common Mistakes
People sometimes confuse the order or separate the phrasal verb incorrectly.
- Incorrect: I read on up him.
- Correct: I read up on him.
- Incorrect: She read up him on.
- Correct: She read up on him.
Remember, “read up on” must stay together before the object.
Differences / Synonyms
“Read up on sb” is similar to “look up sb” but with a different meaning. “Look up sb” usually means to search for someone’s contact details or visit them.
Another similar phrase is “find out about sb,” which is more general and can include asking or observing, not just reading.
Use “read up on sb” specifically when you gather information by reading materials.
Common Collocations
People often “read up on” the following:
- History: To learn about someone’s past
- Background: To understand their education or work
- Achievements: To know what they have accomplished
- Career: To research their professional life
- Reputation: To find out how others see them
Related Phrasal Verbs
Here are related phrasal verbs of read up on sb:
Real-life Dialogue
Here is a short conversation using “read up on sb”:
Anna: Have you met the new manager yet?
Ben: Not yet. I’m planning to read up on her before our meeting.
Anna: That’s a good idea. She has an impressive background.
Practice
Fill in the blank with the correct form of the phrasal verb:
- I need to _______ the candidate before the interview.
- She _______ the author to prepare for the book club.
- We _______ the speaker to ask relevant questions.
Answers: read up on, read up on, read up on
FAQ
- What does “sb” mean in “read up on sb”? It stands for “somebody,” meaning a person.
- Can “read up on” be separated? No, it is an inseparable phrasal verb.
- Is “read up on sb” formal or informal? It can be used in both formal and informal contexts.
- Can I use “read up on” for things other than people? Yes, but it is most commonly used for people.
- What is a similar phrase to “read up on sb”? “Find out about sb” or “research sb” are similar.

