Don't Let Them Disappear

Chelsea Clinton is the author of the #1 New York Times bestseller She Persisted: 13 American Women Who Changed the World; She Persisted Around the World: 13 Women Who Changed History; She Persisted in Sports: American Olympians Who Changed the Game; She Persisted in Science: Brilliant Women Who Made a Difference; Don't Let Them Disappear: 12 Endangered Species Across the Globe; Welcome to the Big Kids Club; It's Your World: Get Informed, Get Inspired & Get Going!; Start Now!: You Can Make a Difference; with Hillary Clinton, Grandma's Gardens and Gutsy Women; and, with Devi Sridhar, Governing Global Health: Who Runs the World and Why? She is also the Vice Chair of the Clinton Foundation, where she works on many initiatives, including those that help empower the next generation of leaders. She lives in New York City with her husband, Marc, and their children. You can follow Chelsea Clinton on Twitter @ChelseaClinton or on Facebook at facebook.com/ChelseaClinton.

Gianna Marino (giannamarino.com) was born in San Francisco and spent her early years galloping horses through Golden Gate Park. She's made a living as an apprentice to a muralist, a jewelry designer, a product designer and a horse carriage driver. Addicted to foreign adventure, Gianna has traveled worldwide, including Europe, Asia, Australia and Central and South America. Between explorations, she lives and works in Northern California and still gallops on horses.