Leonardo DiCaprio is one of the most recognizable movie stars in the world, but he's also a committed activist. DiCaprio started a nonprofit organization more than 20 years ago to help protect the world's remaining wild areas. In this book, readers in grades 3-9 will explore how DiCaprio's work continues to bring awareness to climate change, marine and wildlife conservation, disaster relief, and renewable energy. This series of info-packed biographies introduces students to influential celebrities who use their fame to help others. These high-interest books feature stand-alone spreads, so readers can flip pages and read in any order. Glossary words are defined on the page where they appear, boosting reader comprehension.