After digging underground for a while, archaeologists might discover ancient artifacts from people and civilizations that lived many centuries ago! Artifacts are objects made by humans, and natural objects can be artifacts if humans have changed them. Archaeologists study artifacts to learn about how ancient people lived, and readers now learn about how ancient people lived from studying artifacts that have been unearthed. Exciting photographs and accessible text guide readers to understand the days of the past and how artifacts have served as missing pieces to the puzzle of the ancient worlds.