No longer does publishing your own book have the stigma it once did—mostly due to the changes in the industry including improved technology, author's access via the Internet to self-publishing resources, and the procedures that allow self-published authors to get their books in bookstores without requiring a publisher.
This short guide will not go into details about finding a literary agent or publisher willing to pay you up front for the rights to your book, but it will provide you with step-by-step instructions on how to self-publish a book. Spoiler alert: the top-level answer to the question "how do you get a book published" is that you do it yourself, but in the book we go into the specifics.
The suggestions within this book range from costing nothing to requiring some investment. The basic rule of thumb of book self-publishing: The more money you are willing to invest, the easier the process.