Object Lessons is a series of short, beautifully designed books about the hidden lives of ordinary things. Among the many things expectant parents are told to buy, none is a more visible symbol of status and parenting philosophy than a stroller. Although its association with wealth dates back to the invention of the first pram in the 1700s, in recent decades, four-figure strollers have become not just status symbols but cultural identifiers. There are sleek jogging strollers for serious athletes, impossibly compact strollers for parents determined to travel internationally with pre-ambulatory children, and those featuring a ride-on kick board or second, less babyish seat, designed with older siblings in mind. Despite the many models available, we are all familiar with the image of a harried mother struggling to use a stroller of any kind in a public space that does not accommodate it. There are anti-stroller evangelists, fervently preaching the gospel of baby wearing and attachment parenting. All of these attitudes, seemingly about an object, are also revealing of how we believe parents and children ought to move through the world. Object Lessons is published in partnership with an essay series in The Atlantic.