I turned on my iPAD today and all the files and books in the iBOOKS app have disappeared. These were not intentionally deleted and all were there in their expected places yesterday . . . they just seem to have gone into hiding (??). When I click on the "Collections" tab, all the category folders remain - however, empty. These books and files were/are not stored in iCLOUD. The storage usage metre on the iPAD has not changed - that is, "available storage" has not increased - so I presume these PDFs and books still are somewhere on the iPAD.

Any ideas as to what has happened? Any advice as to how I might "find" these again on the iPAD?


Many thanks,
MG2009