John Michael Green, born on August 24, 1977, in Indianapolis, Indiana, is a multifaceted American author, YouTuber, podcaster, and philanthropist. With over 50 million copies of his books in print worldwide, Green has left an indelible mark on the young adult fiction market. His work, including the best-selling novel The Fault in Our Stars (2012), has not only garnered critical acclaim but also transformed the literary landscape for young adult readers.

Green's journey into writing began after graduating from Kenyon College with a double major in English and religious studies. His early career saw him working at Booklist in Chicago and dabbling in writing, which led to his debut novel, Looking for Alaska (2005), winning the 2006 Michael L. Printz Award. Green's subsequent novels, such as An Abundance of Katherines and Paper Towns, have also achieved significant success, further establishing his reputation as a leading voice in young adult fiction.

In addition to his literary accomplishments, Green has made significant contributions to the online world alongside his brother Hank Green. Their Vlogbrothers YouTube channel and the Nerdfighteria community have become pivotal in creating a dynamic, interactive platform for discussions on various topics, including literature and social issues. Green's involvement in projects like VidCon and Crash Course exemplifies his commitment to education and community building.

Green's personal life, including his battles with anxiety and obsessive–compulsive disorder, has profoundly influenced his work, particularly in novels like Turtles All the Way Down. His advocacy for mental health awareness and his philanthropic efforts, especially with Partners In Health, highlight his dedication to making a positive impact beyond the literary world.

John Green's influence extends across multiple mediums, from literature to online platforms, making him a pivotal figure in contemporary culture. His ability to engage with and inspire a generation of readers and viewers cements his status as a transformative author and creator.