Led Zeppelin IV is one of the common names of Led Zeppelin's fouth studio album, which actual title was in symbols. The symbols were each band members "symbol". Other common names for the album were Four Symbols,Runes, Sticks, and Zoso. Zoso was the only symbol to have actual letters in it. It is Jimmy Page's symbol. Led Zeppelin IV contained their most famous songs, the most famous being Stairway to Heaven. It is on RIAA's list of best-selling albums of all time in the US.
