I worked with Speedy Publishing. Their training was really great and I really learned a lot about ebook writing. Aside from my training with Speedy Publishing, I am also able to learn from these useful videos I found from Youtube.
From Nina Thomas
Here are some simple tips and tricks to use when creating your ebook with Word. In this video I go though the Design and Theme features and show you how to customize your own themes, color scheme and fonts. Once complete, just File Save As PDF. There are plenty of additional options but why not keep it simple!
Make an Ebook Using Canva.com
Here is another way to make it easier. This route along with this tool will make your ebook a lot better.
Learn how to convert your PDF to epub and mobi Reader
Using CALIBRE to convert ebooks, epub, mobi & Table of Contents
You will need to convert your word document or pdf print or web document into a standard ready for reading online. Two of which is epub file and mobi file. epub file is a standard accepted for more ebook publishers and mobi files are a standard to publish as Kindle books.