Inserting the story into an ePub file

Hi guys!!

I work with digital publications and I want to include into this publications some interactive exercises.
Does someone already tried to do that?

Perhaps I need to publish to LMS or CD, instead to WEB. I don't know. 

I will be very glad if someone join me onto this jorney to find a way to do that.

What is an ePub? (Eletronic Publication)

"EPUB is designed for reflowable content, meaning that an EPUB reader can optimize text for a particular display device. EPUB also supports fixed-layout content. The format is intended as a single format that publishers and conversion houses can use in-house, as well as for distribution and sale. It supersedes the Open eBookstandard.^[3]"