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It's okay to publish a book at any age. If it is a good book (or at least good enough.) Worse come to worse, if you can't publish at age 13, you can try again at age 18 or age 23. A famous writer, Pearl S. Buck published her first book at age 10, I believe.
Tips: 1  It's gotta be good: The same rule applies to self-published e-books as it does to print books. 2  Create an arresting cover: When it comes to e-books, everything starts with the cover image. 3  Price your e-book cheaply: You should sell your e-book for $5.99 or less.