Being a good citizen means standing up for what's right-and here's just the way to start. From the author of The Gutsy Girl, this kids' guide to activism is the perfect book for those with a fierce sense of justice, a good sense of humor, and a big heart. This guide features change-maker tips, tons of DIY activities, and stories about the kids who have paved the way before, from famous activists like Malala Yousafzai and Claudette Colvin to the everyday young people whose habit changes triggered huge ripple effects. So make a sign, write a letter, volunteer, sit-in, or march! There are lots of tactics to choose from, and you're never too young to change the world.

Caroline Paul is the author of Tough Broad: From Boogie Boarding to Wing Walking-How Outdoor Adventure Improves Our Lives as We Age; The Gutsy Girl: Escapades for Your Life of Epic Adventure; You Are Mighty: A Guide to Changing the World; Lost Cat: A True Story of Love, Desperation; and GPS Technology, as well as the memoir Fighting Fire about becoming one of the first female firefighters in San Francisco, and the novel East Wind, Rain. She lives in San Francisco.