Extremely Loud & Incredibly Close is a 2005 novel by Jonathan Safran Foer. The book's narrator is a nine-year-old boy named Oskar Schell. In the story, Oskar discovers a key in a vase that belonged to his father, a year after he is killed in the September 11 attacks. The discovery inspires Oskar to search all around New York for information about the key and closure following his father's death.

Jonathan Safran Foer is an American novelist. He is known for his novels Everything Is Illuminated (2002), Extremely Loud & Incredibly Close (2005), Here I Am (2016), and for his non-fiction works Eating Animals (2009) and We Are the Weather: Saving the Planet Begins at Breakfast (2019). He teaches creative writing at New York University.