Manuel Martinez 
¿Por qué existen las reglas? (Why Do We Have Rules?) [PDF ebook] 

This next generation of U.S. citizens has the opportunity to shape the nation and the world. With knowledge of the foundations of citizenship and society, readers can make informed decisions and actively participate in their community and wider government. This book teaches readers about the civics concept of understanding citizenship through engaging text and colorful photographs. In this book, readers will learn about why we have rules and how they keep us safe.