"It" is a horror novel by Stephen King, published in 1986. The story is set in the fictional town of Derry, Maine, and follows a group of outcast kids who call themselves the Losers' Club. They come together to confront a malevolent entity that preys on the town's children, often taking the form of a sinister clown named Pennywise."It" is known for its detailed character development, atmospheric setting, and gripping plot. King masterfully builds tension and suspense, creating a sense of dread that lingers long after the book is finished. The novel has been praised for its psychological depth and exploration of childhood fears, making it a classic in the horror genre.