Within eighteen months three members of this band had gone from total obscurity to part of the best known rock band in the world. By the end of 1971 world domination was such that they could release their fourth album without any sleeve notes, no band image or song titles on the sleeve either. Therefore it has since been called by fans a variety of names from the obvious 'Led Zeppelin IV' to the less obvious 'Runes' after its many Lord of the Rings references to 'Four Symbols'. Or 'Zosa' after its inside cover motif, or plain old 'No Title