In the 21st century, the world has become so interconnected that ignoring other countries is no longer a possibility. In an increasingly global society, with people traveling constantly, learning about the norms and expectations of other cultures is a crucial part of being a respectful global citizen. Combating the ever-present threats of climate change and social injustice also requires learning about other countries' environmental and governmental successes and failures. Engaging fact boxes augment the age-appropriate text in each volume to give readers a well-rounded understanding of countries such as Mexico, Nigeria, and the United States.