"Serious nonfiction" refers to books or articles that are based on real events or information and are intended to provide informative and factual content rather than entertainment or fictional stories. Full definition
That's because after more than 30 years of publishing highly regarded hardcover and paperback books — mostly serious nonfiction — I've become a publisher of essays for electronic readers. (publishingperspectives.com)
Is there a way to support oneself in web or e-publishing of serious nonfiction books, say on US politics or on discrimination? (thekindlechronicles.com)
Serious nonfiction writers and journalists — or those writing anything with a predominant current events angle — should consider Twitter. (janefriedman.com)