Andrea Davis Pinkney (andreadavispinkney.com) is the New York Times bestselling and award-winning author of numerous books for children and young adults, and has been recognized by the Coretta Scott King Author Award committee with an honor for Let It Shine- Stories of Black Women Freedom Fighters and a medal for Hand in Hand- Ten Black Men Who Changed America . She is a four-time nominee for the NAACP Image Award. In addition to her work as an author, Ms. Pinkney is a publishing executive. She has been named one of the "25 Most Influential Black Women in Business" by The Network Journal , and is among Children's Health magazine's "25 Most Influential People in Our Children's Lives." You can follow her on Twitter @AndreaDavisPink. 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 ; Don't Let Them Disappear- 12 Endangered Species Across the Globe ; 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, their children and their dog, Soren. You can follow Chelsea Clinton on Twitter @ChelseaClinton or on Facebook at facebook.com/chelseaclinton.