Best way to learn

I aways say the best way to learn is to just do it. You will make mistakes, you will start over .... many times. But in the end that is the way to truly learn.

But here is a couple good resources

Free: Adobe TV (http://tv.adobe.com/product/digital-publishing-suite/)
Paid: Lynda.com (lynda.com)

See this article for Getting Started resources for DPS:

http://helpx.adobe.com/digital-publishing-suite/help/getting-started-digital-publishing-su ite.html

I taught myself using all of Adobe's resources that they have available. Its a wealth of info and they have a lot of it.  Watch it all and go step by step. Use this forum as well to search out answers.  Getting ready to start my 4th DPS magazine now.