Further Research : Existing E-Publications

Electronic publishing (also referred to as e-publishing or digital publishing or online publishing) includes the digital publication of e-books, digital magazines, and the development of digital libraries and catalogues. It also includes an editorial aspect, that consists of editing books, journals or magazines that are mostly destined to be read on a screen.

Examples 
Digital catalogues
Kindle e-books 
Apple iBooks

Kindle use a standard format for e-publications

iBooks show how e-publications must be designed to be made suitable across a range of formats 

The digital catalogue has a nice aesthetic as it is more interactive than just making the publication suitable for a range of screen sizes or devices.