"How do I publish my book as an eBook?"
"How do I get my book into Amazon Kindle?"
These are two questions I've been asked, and I figure publishing an answer here might be helpful to you!
First, know that I have an illustrator, Carol Stevens, who takes care of all the formatting of our books (currently 10 children's picture books, in both eBook and softcover form). She preps the books for Kindle, which uses .mobi files, and for CreateSpace (for the softcover books). Yes, I know I am lucky.
That being said, Amazon wants authors to list books with them. So they've published a free eBook called Building Your Book for Kindle. This book explains how to format your book successfully as an eBook on Amazon. I hope it's helpful to you.
Another free eBook you might be interested in is, Publish on Amazon Kindle with Kindle Direct Publishing.
If you have a Mac, then Building Your Book for Kindle for Mac might be helpful.
If you want to build your eBook for Kindle in Microsoft Word, then these articles from Amazon can help.
Kindle Format 8 offers great features for children's picture book authors. Suggestions and guidelines from Amazon are here.
And...most importantly for authors of children's pictures books, there is a book written specifically for Formatting of Children's books and Comics for the Kindle. It costs 99 cents with that link. BUT, I was able to find a free downloadable file for the book on this community forum.
Best writing wishes,