Yeah, I thought that's what you were saying, but it seemed a little ambiguous to me so I figured no harm in confirming it in case it wasn't clear to someone else who reads it. That turned out to be the critical piece of advice for me!
I'm still trying to comprehend the interplay between my iMac iBooks program and the iBooks app on my iPad. I've pretty much figured out how to do what follows by attaching my iPad to my iMac & doing your Transfer Purchases thing. But I want to do all this wirelessly.
I have three objectives:
1. download reading material from the internet directly to my iPad, then have them all automatically transfer to my iMac over wifi.
What I don't understand about this is how to make the transfer automatic. I do have Summary>Options>Sync over wi-fi enabled. So maybe it will just happen.
2. download reading material from the internet to my iMac, then be able to select & transfer them to my iPad wirelessly. This one puzzles me a little - it appears to me that I have to go into the iMac iTunes program and do Transfer Purchases, even if the items transfer wirelessly. But again, maybe it will just happen.
3. delete things I've read from my iPad without deleting them from my iMac. It appears to me that once things are on the iMac, they will remain there even after I've deleted them from the iPad. So if I can solve 1 & 2, it will make 3 easy enough. I just have to be careful about when I delete, because my experience is that whenever wi-fi is involved, there's a lag time in syncing. But what puzzles me here is whether wireless syncing occurs over the cloud, in which case the devices don't have to be on the same network, or if the devices both have to be on the same network to sync wirelessly.
I'll be trying to test out all three, but if you know how this is supposed to work and can give me pointers, I'd appreciate your advice!