I noticed lot of long series have covers updated to the recent volumes. They may not seem as big spoilers but sometimes they reveal some developements. Also, if the art style changed considerably over the time they are quite missleading.....i mean cover for vol18 or vol50 looks usually more modern and attractive but the art is realy different than what you get when starting to read the series

Mabey it would be possible to add covers gallery for all volumes? With later volumes visible after opening gallery?