Infinity symbol in bookbinding to indicate that a book is printed on acid-free paper and will therefore be long-lasting. In modern mysticism, the infinity symbol has become identified with a variation of the ouroboros, an ancient image of a snake eating its own tail that has also come to symbolize the infinite, and the ouroboros is sometimes drawn in figure-eight form to reflect this identification, rather than in its more traditional circular form. In the works of Vladimir Nabokov, including "The Gift" and "Pale Fire", the figure-eight shape is used symbolically to refer to the Möbius strip and the infinite, for instance
Infinity on High the US to date February 2013. It was the band's first US number one album and second consecutive top ten effort, as its previous release, "From Under the Cork Tree", peaked at number nine. The album spent its first six weeks in the top ten, out of a total of fifty two chart weeks. "Infinity on High" also opened at number one on "Billboard"'s Rock Albums, Tastemaker Albums, and Digital Albums charts, with over 27,000 digital sales making up the total first week tally. In its second week, it fell to number five on the "Billboard" 200, selling 119,000 copies