Esther Grace Earl was an American author, internet vlogger, and online personality born in Beverly, Massachusetts in 1994. She was active in online communities, including as a Nerdfighter and activist with the Harry Potter Alliance. Earl befriended author John Green, who credited her as inspiration for his bestselling 2012 novel The Fault in Our Stars. Earl died from cancer on August 25, 2010, at age 16. Following her death, her writings were compiled and published in 2014 as This Star Won't Go Out, which included her biography and appeared on the New York Times bestseller list for young adult books. Earl has been recognized as an influential activist. Her family and online followers have continued to organize charity and fundraising events in her memory.