The kind of writing that we do depends upon its purpose, and who is expected to read it.
A school assignment intended to be read by a teacher will use a different kind of English than a note scribbled to a friend. Here are some common types of writing.
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blog post
book report
critique
e-mail
essay
letter, personal
letter, business
magazine article
movie review
news article
news release
novel
poem
poster
short story
source paper
thank-you note