Adobe digital editions is unnecessarily difficult to use. It doesn't have to look like a library it just has to work. I cannot seem to open a book or change the list on the shelf. I want to change the order of the list and cannot do that. Listen guys just make it easier. Highlight your choice, select it and voila open it...and start reading. ? I downloaded a book and can't open it ---then all the way on the right side of the page it says missing. How is it missing? It is on my list.