Holding your own book, that you wrote, in your hands is a real treat. It is not tricky to publish it. The hardest part is writing the book. A book does not have to be 600 pages. To self-publish a book, it is better to keep it under 200 pages. Cheaper too. Once you have written your book, then you can find a place to publish it.

Even if you have no cover artwork, you can still publish your own book. Below are some of the sites you could use. I have used Lulu, Blurb, and most recently, Amazon’s Kindle Direct Publishing when I found that Blurb no longer publishes e-books. I wrote about self publishing twice before. I may experiment with other companies.
Amazon’s Kindle Direct Publishing
Apple — you can publish from Pages in the Apple environment.
Dorrance — the oldest self publishing company
You can read about what books I have published on my media page.
And if you want to print more than books, read this article.
Most importantly, if you want to write your own book and publish it, just do it!
The Straw Market in downtown Nassau, The Bahamas, is famous. I found it to be too mass produced. If you want to support some of the independent artists and shop owners, then you will have to get in a car and go slightly (ten minutes) away from the main street. The reason for the spread out shops is that, apparently, the rent on the main strip is quite high. The list of independent shops is super short:

Farmers Market, on the porch of the building in the same complex as the Kim Smith gallery. Basically, it’s two vendors. One who sells some vegetables, a baked good, and lobster tail tacos. The other person makes the tacos.
Bahama Art and Handicraft, East Shirley Street: Two sisters have this shop with lots of nick knacks. They don’t allow you to take photos of the things inside but you can find them on their Facebook page if you want to see what they have.