What are some examples of nonfriction?

Answer: include expository, argumentative, functional, and opinion pieces; essays on art or literature; biographies; memoirs; journalism; and historical, scientific, technical, or economic writings

Explanation:

two main categories of literature are fiction, which includes imaginary stories, and nonfiction, which includes writing based on true events. Nonfiction must include real-life situations, include factual information, and usually has a purpose to express or to inform.