author vs maker

author and maker both are nouns.

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

As nouns, maker is a hypernym of author; that is, maker is a word with a broader meaning than author:

Other hypernyms of author include shaper.

author (noun)	maker (noun)
writes (books or stories or articles or the like) professionally (for pay)	a business engaged in manufacturing some product
someone who originates or causes or initiates something	a person who makes things

author (verb)	maker (verb)
be the author of