The War of the Worlds is a science fiction novel written by H.G. Wells. It is one of the earliest and most influential works in the alien invasion subgenre. The story follows an unnamed narrator as they witness the invasion of Earth by Martians. The War of the Worlds explores themes of imperialism, survival, and the fragility of human civilization. Despite being published over a century ago, the book continues to captivate readers and remains a bestseller on Amazon.