Currently Being ModeratedAug 23, 2012 3:50 AM (in response to jmusic800)
No problem. Just upload the new cover with iTunes Producer, leaving everything else alone. I've done this twice, and the update was live in the store within a few minutes each time.
Currently Being ModeratedOct 23, 2012 4:46 PM (in response to MichiHenning)
I have changed my book cover and added to the book a few times. It will just show it as updated to people who have bought the book already. Here is my book: https://itunes.apple.com/us/book/cutest-book-ever!/id550927129?mt=11&ign-mpt=uo% 3D4
Currently Being ModeratedNov 18, 2013 7:37 AM (in response to jmusic800)
You’ll need to create a separate cover image and upload it to iTunes Producer. Use a tool like Photoshop or if you've created the book on your iPad you could just take a screenshot of your cover page and crop it.
The file must be a JPEG, PNG or TIFF file in RGB mode, (these are standard filetypes for images).
The image must also be a minimum of 1400px on its shortest side. It doesn’t matter if the cover art is landscape, portrait or square.