found: Work cat.: Donovan, Matt. A cloud of unusual size and shape, 2016:p. 252 ("These essays first appeared in the following publications ...") p. 4 of cover ("There's no contemporary essayist who can touch Matt Donovan for his companionableness, his easy and immense erudition.")
found: Merriam-Webster dictionary online, Feb. 14, 2017(essayist: a writer of essays)
found: Oxford dictionaries online, Feb. 14, 2017(essayist: A person who writes essays, especially as a literary genre)
found: Macmillan dictionary online, Feb. 14, 2017(essayist: a writer who writes essays)
found: LCSH, Feb. 14, 2017(Essayists. BT Authors)
found: Jackson, B. The philosophy essay writer's handbook, 1988.
found: Benét, L. Famous English and American essayists, 1966.