Since this is my first post here I will briefly introduce myself as a computer technician who generally avoids Apple products at work. They are pretty slick as personal devices but I often find irritating things about them. Long story short, I had the chance to cash in some promotional "reward" points and got a new 128GB iPad (not a Pro.) Maybe this will get me more familiar with these things from use. What I want to do is load my digital book library onto this iPad and use it as an "ereader." Most of the files are pdfs and epubs. The app that looks best to me is KyBook. Right off the bat, I'm irritated -- but I'm trying to figure it out and looking to those with more iOS experience. iBooks and iTunes don't seem to deal well with files that weren't purchased through them. KyBooks looks better than iBooks anyway, but the main irritation is getting the files into the iPad. Obviously there is no USB port, but even with an adapter into the Lightning port, a useful file system is intentionally omitted. Third-party apps seem to be the way around this but I don't know how well they actually work. I'm thinking the SanDisk iXpand is looking like it might work, or perhaps their Connect. Pushing 80GB worth of files up through some cloud service would just be stupid. Is there anyone here who has done something similar successfully? Would I be able to load these files into the iPad in a location KyBook will be able to access? Is there some app that would make the Lightning/USB connection really work to simply transfer files?