What are some examples of nonfiction writing?

Ken Kesey's the electric cool aid acid test is a good example of creative nonfiction. Guns, Germs and Steel is an eye opener.

could you seriously not think of a book that is meant to be taken factually? Any biography ever written is nonfiction, any book about history, politics, economics or whathaveyou is nonfiction. Essays are nonfiction prose. Anything that attempts to portray happenings that occur in real-life i.e. anything that isn't a made up story. Made up stories are the realm of fiction- everything else=nonfiction. literally 90 plus percent of your local library is non fiction.