Anyone of any age, any race, any background, any education - if they write an interesting enough book - can become a published author. What it takes is imagination, the ability to put words on a paper in an interesting, perhaps even unique way, the fortitude to rewrite, rewrite, rewrite, and polish, edit, polish, edit until the story sort of sings. I think everyone has a story inside him, but only a few have the persistence and, of course, the interest, to write it down and see it through.
