Self-publishing is where you, the writer, bypass all the middlemen involved in traditional publishing. These intermediaries perform editing, design, illustration, marketing, advertising, etc. for your book. As a standalone publisher, these features are usually your job.
However, you can easily hire someone to self publish your book through https://selfpublishingmadeeasynow.com/ for you and still consider yourself a traitor. As a self-publisher, you can choose which functions you want to perform and which ones you need to hire to help you.
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This is a business
In other words, self-publishing means that you manage and finance a business dedicated to producing and selling your book. In most instances, your business's goal is to make a profit by creating a product that sells enough copies to cover the expense of creating it, marketing it, promoting it, and distributing it.
Many enter self-publishing as a means to promote their other business. Some enter self-publishing as a way to capitalize on the many years of experience that they have gathered during their career. By self-publishing, these people can share their experiences by writing about them and also earn an income from it – thereby extending their career.
Develop, produce, sell
The process of self-publishing can be broken down into three broad stages:
(1) Development: which involves planning, writing, editing, designing, indexing, and illustrating the book;
(2) Production: which involves preparing the book for printing, and getting it printed; formatting the book as a pdf and also as an ebup, and,
(3) Selling: which involves marketing, promoting, and selling yourself and the book.