The idea of "invisibility" is key to the novel Invisible Man , which comes as no shock to anyone who actually read the book (or read the title). However, we are never presented with a concrete definition of what "invisibility" truly means. We know that certain characters are described to have it, such as the narrator, Dr. Bledso, Brockway, and Rinehart to list a few. While we get somewhat of a description of the invisibility of each of these characters, I believe that the Rinehart sequence gives us the most insight into what invisibility really means. The narrator describes himself as invisible in the prologue and gives quite a lot of information on the foundation of invisibility. He says that, "I am an invisible man. No, I am not a spook like those who haunted Edgar Allan Poe; nor am I one of your Hollywood-movie ectoplasms. I am a man of substance, of flesh and bone, fiber and liquids -- and I might even be said to possess a mind. I am invisible, understand, ...