Well yes, you just have to create your own ebook, if the contents are lyrics or recipes or your latest novel is up to you!
It's a good opportunity to learn, I recently created my first ebook (a conversion from a paper book, actually) and found it a very rewarding experience.
There are various more or less automatic or manual ways to do it. You might want to have a look at the epub section of the forum, there are lots of tools to create epub files plus tips, tricks, guidelines, anything you might need.
Welcome to MR, by the way
