I have seen many [ failed ] lucid dreaming book projects. So if you are thinking about starting another one, here is how to self-publish your book -

1) HAVE YOUR BOOK WRITTEN.

2) Make sure everything is legal. E.g. all images are public domain, names trademarked..

3) Signup for an amazon account.

4) Login at: [https://kdp.amazon.com/self-publishing/signin]

4.5) Make your account information is filled out.

5) Click "Add new title"

6) Fill everything out, including Book Cover.

7) Fill out your credit card, etc...

8)???

9) Profit!

(Totally serious, the "???, Profit!" is just a joke.)

Have fun cluttering up Amazon