When world-renowned scholar Thomas S. Mullaney “lost” both his parents, he began thinking of how information—all the stuff that makes us, that we make, and that we leave behind—ultimately disappears. The information that makes up our lives, from mundane official documents, poignant family photos, and sentimental artifacts to the cues embodied in our genes, both defines us, and inevitably decays, no matter the medium. Everything that we put “in formation” eventually collapses into randomness. Never is this more evident than in the wake of a parent’s death. Yet from all these elusive, even evanescent, data points, history is written and a future is made. How We Disappear is a wide-ranging examination of the micro and macro, toggling between storytelling from Mullaney’s own life and his reflection on the science of entropy and the nature and history of information. Lyrical and poignant, the book offers inspiring and eye-opening insight on the miracle of existence, and on what it means to forge meaning from a chaotic universe.