"Everyone knows Charli D'Amelio as the only TikTok personality to have--at age 15--surpassed 50 million followers. But who's the girl behind the posts? For the first time ever, Charli is ready to share the intimate details of her life: how she navigated challenges and stayed positive in the face of cyberbullying, who she was as a little girl, what family means to her, and how you too can navigate your social media presence and IRL friendships in order...