So this post is written mainly for ebooks to be uploaded to Amazon KDP.
NOTE: You can find all this self-publishing info online too. Take special note that each online marketing forum has different requirements (like as to page breaks, dimensions for covers, etc.). I just hope my recap here is more relevant and concise, with all the basics you need, and easier to follow.
As a copy editor, I do a few clean-up formatting steps for my authors (removing all stray spaces, returns and any manual tabs). Of course I remind them to have their professional formatter fix things as needed in proper fashion and carry on with all his/her additional steps. As an Indie author, I don't always use Styles for some of the more basic formatting issues. From MSWord's Home tab, I use Bold (mostly for nonfiction), Italics (for both fiction and nonfiction), plus bullet points and Arabic numerals for listings (mostly in nonfiction), but the Multilevel List (outlining, in other words) works great for when I create my bibles for my stories/series. Excel is nice for that too.
TO GLOBALLY REMOVE STRAY SPACES AT THE ENDS OF PARAGRAPHS
[Some authors like to add a Cast or List of Characters too.]
Denise Barker, Author, Blogger, Copy Editor
Books that Build Character(s)
When you give someone a book, you don’t give him just paper, ink, and glue. You give him the possibility of a whole new life. Christopher Morley
The best inheritance you can leave your kids is an example of how to live a full and meaningful life. Dan Zadra