Bookshelf Features: If your bookshelf contents seem to have suddenly gone missing

"All the links and annotations in my bookshelf are gone - what happened?"Some authentication methods affect personal ebrary account logins - and therefore affect bookshelves.  If your ebrary site changes to or from one of the following authentication methods, your personal ebrary account and your bookshelf will change:If you had links, notes, or highlights saved to your bookshelf, they won't automatically be in your new bookshelf - but, we can copy them over for you.To have your old bookshelf contents copied over to your new bookshelf, email and include the following information: