Trying to visually trace each person's roots, which can span multiple countries and continents, could look like a massive, tangled ball of yarn. Immigration has been a hot-button issue since the dawn of civilization, with each country's government policies allowing them to dictate who can stay, who should go, and who isn't even allowed to enter. Readers will learn about migrants and refugees and some of the reasons for leaving home behind. Through this engaging text they will recognize the intricacies of a complex issue that cannot be boiled down to "good" or "bad."