Once you have produced your book in digital format (ebook, epub, PDF), next step will be to publish it. You may target a small batch to begin with, if you want to check for commercial possibiities. As I commented in a previous post, on-demand publishing companies allow for the production of single books, allowing the selection among several book formats, paper qualities, binding and color or black-and-white printing. This post will present the basics for publishing and Internet selling.
Register at publisher's webpage
First step will be the register in the selected publisher's page. In Internet, you will find multiple companies, such as Lulu.com, Bubok.com, Amazon.com... They don't usually charge for this initial register. Only when you order some printing they will get come comission on sales, together with printing and handling.
You will be requested some minimum personal data to verify your identity as author in later stages of the publishing process. You will be prompted to introduce a password for future login in the system, which will also protect your intellectual property.
Some companies require the register in the specific country where the author lives, for taxing on benefits.
A book publication does NOT require the register in any database. However, it is strongly recommended to apply for a registry in the International Standard Book Number (ISBN) system, if you intend to sell it, either on book shops or in Internet.
Important here is to know that ISBN register includes book size, number of pages and binding type. You will need to provide those upon registration. Any later change (pocket edition, paperback version...) will imply a new registry.
In this register, editor and publisher must also be indicated. Both author and / or publisher can take the role of editor (if you prepared your book yourself, it is you). You may name the publisher to be editor, too. Most publishers can do the ISBN registry for you (often at a cost...), and there are several options, each one with benefits and drawbacks.
Printing process itself is done just by sending the PDF file to the editor / publisher, who typically produces a first sample for revision and corrections. If everything is OK, after author's confirmation (and purchaser order for further books...) the printing will take place.
Most on-demand publishers anounce your publication on their own sales channel (sometimes, inside their own web), and they establish different comissions or expenses depending on the kind of selected contract.
Of course, important here will be to define selling price and comission for the author...