I keep trying to add editions because I listen to a lot of audiobooks and the feature to add the editions hasn't worked for me. It feels unusable due to something that feels like a glitch. The only workaround I've identified, which is very cumbersome, is to use the ISBN to add it like a new title and then to mark it as a duplicate. I wouldn't have cared but the stats say I read like 90 some percent print books, but it's just because it's not really possible to actually mark that most of these books are audiobooks. Anyway, just started using this app today and it's kind of glitchy but it has a lot of potential so I hope it takes off.