Originally Posted by susan_cassidy
Syncing does not download books you did not specifically request for a device, it only updates bookmarks, last pages read, etc.
Syncing does get every ebook one has purchased on Amazon at least for me. One must then place them in one's collections on the Kindle 3.
However, if one deletes the ebook on the Kindle, it will be archived and not be there. It can be downloaded again later if one sets it up that way in Amazon.