This University of Bristol site with exercises shows how using punctuation marks correctly can greatly enhance both the clarity and the power of your writing.
Explanations of various types of punctuation.
In this series of exercises, the vocabulary for the various punctuation marks is checked, then their function is explored.
A general resource for different types of punctuation.
Getting punctuation right shows that you are a careful writer who cares about detail. Getting it obviously wrong makes you seem sloppy or rushed. This can have the effect of mildly irritating the reader to complete misunderstanding of parts of your text.
Do you know the differences between:
- Its and it’s?
- A colon and a semi-colon?
- Commas here: The painting, which I bought last week, is perfect for my new house.
But not here: I’m going to put the painting that I bought last week in my new house.