Sign in to iBooks app to sync books, bookmarks etc.?

[matrix07]

When I first started iBooks it asked me to sign in with my Apple ID to sync books, bookmarks, etc. which I wanted to do but I have 2 IDs. One ID for store purchase and another one for iCloud.
Which one should I use in this case?

 

[matrix07]

Anyone? I thought it's an easy question.

 

[matrix07]

Urghh. Looks like it's more complicated than I thought.

 

[eas]

I'm struggling with this too. I only just realized that iBooks on iOS apparently uses the iCloud account, rather than the store account, or at least it is supposed to. I get weird, confusing dialogs though when I fire up iOS iBooks.

The Mavericks version does something similar, and asks if I want to change the account I sync with when I log out of one and into another, but it isn't clear what happens if I choose not to.

One thing is clear though, bookmarks and collections aren't getting synced in the way I'd like.