Vanishing point of multipoint perspective, and historian Kirsti Andersen compiled these observations. She notes, in terms of projective geometry, the vanishing point is the image of the point at infinity associated with , as the sightline from through the vanishing point is parallel to . As a vanishing point originates in a line, so a vanishing line originates in a plane that is not parallel to the picture . Given the eye point , and the plane parallel to and lying on , then the vanishing line of is . For example, when is the ground plane and is the horizon plane,
Parallel Lines make "Parallel Lines" an extremely popular album in the United Kingdom, where it was a number-one hit and charted for 106 weeks during the late 1970s. "Q" magazine called the album "a crossover smash with sparkling guitar sounds, terrific hooks and middle-eights more memorable than some groups' choruses." In a retrospective appraisal of 1970s post-punk albums, "Spin" magazine's Sasha Frere-Jones said "Parallel Lines" may have been "the perfect pop-rock record" and Blondie's best album. Christian John Wikane from "PopMatters" later called it "a creative and commercial masterpiece by Blondie ... indisputably one of the great, classic albums of the rock