The best is used Microsoft Word Starter 2010 Software which is free.
Save it under 'title.doc' Word 97-2003 format.
First, is the 'Title, Author Name & Copyright' Section. For example, 'Cstan98 Jedi 36 Strategies 2011, By Tan Chun Siong, Copyright Tan Chun Siong 2011'.
Second, is the 'Ebook Licence Notes' Section. For example, 'Ebook License Notes, This ebook is licensed for your personal enjoyment only. This ebook may not be re-sold or given away to other people. If you would like to share this ebook with another person, please purchase an additional copy for each recipient. If you’re reading this ebook and did not purchase it, or it was not purchased for your use, please delete this copy and purchase your own copy. Thank you for respecting the hard works of this author'.
Third is the 'Table Of Contents' Section. Which you do last. You need to insert hyperlinks - bookmarks. So that when people link they go to heading.
Fourth, is the main texts. You type the headings first. Then format them 'H1' or 'H2'. For paragraph normal texts, format them 'normal' or 'no spacing." You must not use tabs, returns & page breaks. Use the inverse 'P' button in Microsoft Word Software to see the extra tabs, returns & remove them. Because some ebooks format will automatically convert wrongly to their format. It is basically 'Introduction, the Chapters & Conclusion.'
Fifth, is 'About The Author' section. Where you tell somethings about yourself. And give your bookstore or author page hyperlink. Hyperlinks should begin with 'http://' for example 'http://www.cstan98.com'. Email should begin with 'mailto:' for example 'mailto:admin@cstan98.com'.
Sixth, it should end with '###'. To show end of ebook.
There are 2 free ebooks you should read to help you write & publish ebooks. They are smashwords-style-guide & smashwords-book-marketing-guide .
Go to https://kdp.amazon.com/self-publishing/signin . Create an account. When you have written your ebook, follow the instructions & steps to upload publish your ebook. It will take 1-3 days to review your ebooks to publish. If it contains mature adult contents, the ebooks may not appear in Asia Pacific region Amazon search.
Do you know you can publish public domain materials in Amazon Kindle Direct Publishing. That means if you have website materials, you can copy & paste to a Word 97-2003 document & publish as a Kindle Ebook. But the Amazon Kindle royalty is lower (i.e. 35% instead of 70%).