How to recover a deleted book in iBooks? I deleted accidentally a book that I was reading and it already automagically synced to my iPhone as well.

It was a downloaded ePub. I added notes and bookmarks there. 

Now that's gone. Is there any hope to get it back somehow?

I don't see anything like Recently deleted in iBooks.

Maybe we can get it from some kind of iPhone backups? In that case, I don't think my recent notes will be still there...
Happily, it seems that by readding the eBook file in the iBooks, the notes and bookmarks are back.

I had to redownload the eBook and open it in iBooks.