Reviews for If the World Were 100 People“Budding mathematicians, economists, sociologists, and ecologists will all find something useful in this percentage-based look at human life on Earth.” Kirkus Reviews“An up-to-date invitation to think about important issues we are facing right now […] This is a terrific find for social studies teachers who want to promote inquiry and active citizenship.” Myra Zarnowski, City Univ. of New York, School Library Journal“This visually engaging nonfiction picture book […is] an informative, appealing primer on societal data.” US Publishers Weekly