Examples from the Web for long-form
When I want to think deeply, I write out my thoughts as long-form narratives or do mind mapping on my computer.Wired Executives Find that Disconnecting Can Help Spur Creativity|Beth Comstock|October 19, 2013|DAILY BEAST
I was actually telling a story, and line by line when you put it all together it forms a long-form narrative of the trip.
Before he became a politician, Obama was a long-form writer.Obama’s Debate Performance: How Twitter Has Done Us Wrong|Richard Just|October 10, 2012|DAILY BEAST
Trump may have been “very proud of myself,” as he put it, when the president released his long-form birth certificate.