Book excerpt: Since the dawn of the Space Age, small cohorts of humanity have broadcast signals towards other stars, fabricated "space-time capsules" to "speak for Earth" aboard interstellar probes, deposited collections of "space oddities" on other astronomical bodies, and permanently incised the memory of our species across the deep-time legacy of the Sol System. Many of these purposeful "messages" are the consequence of age-old behaviors, traditions, and material practices using modern aerospace technologies. Most attempt to preserve narratives of human experience in social exchange devices for imagined, exotic audiences. Looking back upon this accumulative history of "messaging from Earth", how do we begin to interpret such an eclectic portrait of Earth for ourselves? Surveying and cataloguing the variety of these artifacts through a series of interdisciplinary essays and visual documentation, this volume chronicles our changing relationships, customs, and assumptions made within this material culture for our own eyes. What do these autobiographical accounts tell us about Terrans and our minds, set against the backdrop of our planetary history?