As an independent publisher my first step when publishing a book for any other author is to conduct a consultation to learn about the book and the author. I especially want to know the author’s expectations for the book. If you are going to publish your book, the same step applies. It won’t be in the form of a consultation but you definitely want to set your expectations. Most of the time the desire may be to have a best selling book, but not always. Sometimes an author just wishes to share memories, skills, or experiences with family and friends and perhaps anyone else who may be interested.
The more you know about your book and your expectations the more likely you are to succeed with your book.
If your goal is just to share, then numbers may not be as important but you still need to identify your readers. If your goal is to sell as many books as possible, you must know your readers if you are to reach them with a message about your book so they can become buyers. This is a critical and time consuming process that is essential to the financial success of any book. There are many good books on the subject of book promotion, marketing, and sales and many methods. Most of them have merit but there are no guarantees. You may have to explore many possibilities before finding one that works for your book.