There is a great album art cover view when looking at a mobile device connected to Spotify (see screenshot) it would be great if Spotify client could offer this view in normal library and playlist browse mode - great way to remember stuff you have in your library!
Right now you can view large album art if you are playing a song, but if browsing for an album you can only view a very small version of the album cover. If would be nice if (a) you could right-click on the small album cover image and get an option to view the large album art or (b) show the large album art on the album page.
Please bear in mind that the Community is not an official Spotify support service. It's a place where we all help each other, whether we work for Spotify or not. So please use your discretion when using the forum.