Very often my co-workers ask me the question:

What are you doing?

And I always wonder whether I should reply with reading on or reading about :

I am reading about the origins of the universe.

I am reading on the origins of the universe.

Can I use read on and read about interchangeably?

  • read on means to continue reading.
    – user3169
    Oct 16, 2018 at 5:38

1 Answer 1


The correct preposition there is about: I am reading about a subject.

We also have the phrasal verb to read up, which is informal and means to study, or become more familiar with something. Read up uses on: I'm reading up on that subject.

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