You have produced your ePub. Next the final step of the e-Pub and ebook publishing process is getting your books to the various retail sales channels. Depending on the genres of your books this can be more or less complex.
IGP:Distribution Manager addresses this problem directly making it easy for Publishers of all sizes to distribution multiple books to multiple aggregator, retailer and search channels.
Publishers publish works for authors in a number of expressions. Traditionally these were only print books. These were sent to a distribution agent for physical shipping to main street bookstores, or to a customer via courier after an online transaction.
Now there are multiple e-book formats that need to be delivered to multiple organizations who are in the business of selling digital formats for use in an increasing range of digital devices. This situation is probably going to become a lot messier before, and if it settles down.