Bobby Henderson is an American author and activist best known for founding the Church of the Flying Spaghetti Monster, a satirical religion that promotes a lighthearted critique of organized religion and advocates for the separation of church and state. His work gained significant attention in 2005 when he wrote an open letter to the Kansas State Board of Education, arguing against the teaching of intelligent design in public schools. Through his writings and public appearances, Henderson has encouraged people to embrace skepticism and critical thinking. His book, The Gospel of the Flying Spaghetti Monster, further explores the tenets of this parody religion, which humorously posits that a deity made of spaghetti and meatballs created the universe.