Got my iPad and downloaded a few free books from the iBookstore. They don't have 'album artwork' so I added them from iTunes>Get Info. What's the 'preferred' resolution of the cover art? What is the resolution of the cover art [from a book from iBooks which has artwork included]? Some of the images from Google are more square than others so I was wondering what the best resolution would be. Hopefully you'll understand what I'm trying to ask Thanks.