I figured out a kinda low tech way to figure out what I have already read. I went though the Chicago Public Library, made a list of all of the romance books I wanted to read - about 300. I put them all on my overdrive wish list. Now, as I check them out, I will remove them from the wish list. I figure anything I read before, I will have to take my chances. When I got physical books from the library, I listed the same books over and over, and realized as soon as I picked them up I had already read them. But to turn on the reading history on the library web site would allow THEM to see what I have read. Don't know what security risk I represent, but I'm sure there is something.