The popup book serves as an archive of disappearance, chronicling the evolution of phones from handwritten numbers to digital connectivity. Its covers, reminiscent of bygone eras, evoke the fading practice of recording phone numbers by hand. Each page within the archive showcases significant phones, inviting tactile interaction and preserving their memory. The iPhone spread, with its simulated digital scrolling, symbolizes the vanishing transition from traditional wall telephones to the universal presence of modern smartphones, capturing the essence of technological evolution within the context of disappearance and change.