Book excerpt: Object Lessons is a series of short, beautifully designed books about the hidden lives of ordinary things. It may be responsible for a greater improvement in human diet and longevity than any other technology of the last two thousand years-but have you ever thought seriously about your refrigerator? That box humming in the background displays more than you might expect, even who you are and the society in which you live. Jonathan Rees examines the past, present, and future of the household refrigerator with the aim of preventing its users from ever taking it for granted again. No mere container for cold Cokes and celery stalks, the refrigerator acts as a mirror-and what it reflects is chilling indeed. Object Lessons is published in partnership with an essay series in The Atlantic.