Can I create content in iBook Author and push it to my Newsstand App?

Good afternoon!

I am totally new at iOS developement and I am exploring the possibilities of the Newsstand app.

I started building an app following a tutorial and up to now the basic code is working.

What I am trying to do right now is see if I can create a magazine edition in iBook Author and push it as my new issue.

So far, I got nothing but a blank issue.

Is it something possible or do I have to build my own type of asset reader?

Thank you!

Marie-Eve