Microplastics—the broken down byproduct of plastic items we toss out every day—are choking our oceans. But middle-schooler Anna Du is on the case! Now a top science fair winner, Anna shares her account of how she went from worrying about the environment to designing award-winning solutions. Writing for kids her own age, Anna alerts her readers to the threat of microplastics pollution and urges them to care about the environment. She leads them through the frustrating-yet-rewarding process of design, engineering, and invention. This book could inspire a generation of inventors and engineers!