PODTo self-publish in print, almost the only viable option, unless you are rich enough to invest the money needed to print several thousand copies of your book, is to use a POD service. POD stands for print on demand, a process that takes advantage of new technology that melds a high speed printer/copier machine with a book binder. So far as I know, the only commercially available one is called the Espresso Book Machine. Some bookstores have invested in these machines, but they are expensive, so they are not generally affordable for a small business. But several online companies are out there, including Lulu and CreateSpace (from Amazon) and Barnes and Noble, that provide a way to print and sell your book using their POD machines and their websites.
However, even the POD process requires that you format the manuscript properly, and create a PDF that looks like a typeset book, with all the correct information on the title page (front and back) and with proper headers and footers, including page numbers. That is much harder than it sounds! Some people use MS Word templates from companies like Joel Friedlander's Book Design Templates. Other use desktop publishing software, like Adobe InDesign (which can also produce an epub file for the ebook version). But InDesign is complex and not free, so that's a real investment of time and money. There are commercial services that will format print books, just as there are for ebooks, but all of them have the same limitation: correction workflow. If you give a commercial services a word processing file, and they give you the a PDF to publish from, how do you correct that if you find an error later? Generally, unless you can edit PDFs, you have to ask them to make the correction for you.
Obviously, everything should be proofed carefully before you hand over the m.s., but it's difficult to be sure you got every single tiny typo. Correction workflow should be factored into your decision on how to produce the PDF. And keep in mind you will need a full-color PDF of the entire cover (front, back, and spine), not just a front cover image, like you do for an ebook.