a reader
Examples
There isn't any distinction between a reader and a writer - reading is so much a part of it.
I can't write without a reader. It's precisely like a kiss-you can't do it alone.
To say that an author is a reader or a reader an author, to see a book as a human being or a human being a book, to describe the world as text or a text as the world, are ways of naming the readers craft.
Every text assumes a reader.
I can give advice to anyone interested in writing in one word: Read! I think it's much more important to be a reader than to be a writer!
I pre-suppose, of course, a reader who is willing to learn something new and therefore to think for himself.