The importance of artwork has been diminished with small package CDs.......
But in the old days with large vinyl album artwork often there were a series of connected images with front and back cover telling a story or giving us a "riddle" to solve, gatefolds had even more photos to ponder the meaning of.......
Often the album cover of record playing was on display below turntable or passed among friends to examine while music played
I do apreciate when graphic images are in harmony with theme of the music instead of just random image. For example I always like this album cover which speaks volumes about the music themes

Speaking of pondering picture or looking for riddles........do the windows and door in image above form an inverted crucifix, he he