Asimov vs author

Asimov and author both are nouns.

Word	Noun	Adjective	Verb	Adverb
Asimov	Yes	No	No	No
author	Yes	No	Yes	No

Asimov (noun)	author (noun)
United States writer (born in Russia) noted for his science fiction (1920-1992)	writes (books or stories or articles or the like) professionally (for pay)
	someone who originates or causes or initiates something

Asimov (verb)	author (verb)
	be the author of