A comic book writer.
They are using a pseudonym.
It is a person who writes the book.
The name for a person who writes non-fiction is a non-fiction author or writer.
An author is a person who writes and sells books.
A person who writes comics is typically called a comic book writer, or simply a writer in the comic industry.
Its 'lexicographer'
A authors name that writes about leopards is: Nathaniel Burt. His book is called leopards in the garden!!!
The author of The Name of This Book is Secret is Pseudonymous Bosch but, his real name is Raphael Simon.
The person who writes on behalf of some one else is called a biographer.
The answer is copywriter
an auto-author, or the author of an autobiography.
i think that the person who does/writes all of this is the critic or critique. i forgot how to spell it!