Should I Hyphenate Nonfiction?

If you check up the New York Times Bestsellers notification list, you will realize that the word nonfiction is never hyphenated. The Chicago Manual of Style writes it as nonfiction without the use of a hyphen.

Which is correct non-fiction or nonfiction?

Checking a couple of on-line dictionaries, the American (Merriam-Webster) has only nonfiction, whereas the British dictionary (Chambers') has only non-fiction.

Is nonfiction a real word?

: writing or cinema that is about facts and real events He prefers to read nonfiction rather than novels.