However, most writers of “real” books take from three months to a year or more to write. And then the book requires more time for revising, editing, designing and marketing.
Very few self-published books come out “on time.” Everything takes longer than you think it will. If you rush, you will make mistakes that will take additional time to correct. It’s much more important to be good than to be fast or first.
The book shown below was supposed to go on sale in July of 2010. It should be ready in a week or two.