What is the difference between being a writer and an author? I am sometimes asked. The process of writing a book (I have completed eight and sold seven) is so lengthy, so all-consuming, that it merits the separate designation. Author: a person who has completed a grueling, rewarding activity, composing a coherent narrative of some length—generally at least 60,000 words. Keeping track of all the threads over many years and tying them together, while maintaining some linguistic elegance, is quite different from the week-long task of writing an essay or article.