I usually use Dropbox to get my epub files into iBooks. This works quite well when I only need to add one file at a time, but now I've received a collection of a few hundred epub files.
I am really not used to iTunes, but from what I could gather the collection a book is part of (in iBooks) is not known/registered by iTunes.
If I add all these files to my iTunes library and start syncing to my ipad I fear my iBooks will get completely cluttered with the new files. And manually sorting the files on the ipad seem like quite a cumbersome task.
How do I conveniently transfer those epub files from my computer onto my ipad straight into its own collection in iBooks?
All the new files can go into the same collection.