Grab this nifty ebook below (it's in .epub or .mobi format, which will open on any computer) for information about formatting and self-publishing.
If you have the ibooks or kobo app installed on your computer (or ereader) grab the .epub file.
If you have the Kindle app on your computer or ereader, grab the .mobi file.
Ace The Apostrophe.
Here's a guide book with a few quizzes and links to help you get a really good handle on how to use the apostrophe (and a few examples of how not to.) Available in .epub or .mobi