Who is Chuck Klosterman from Sex, Drugs, and Cocoa Puffs: A Low Culture Manifesto and what is their importance?

As the only true character in the book, Chuck Klosterman is the author of the novel, and the only point of view given in the story. Klosterman is bright, inquisitive, and an admitted member of Generation X. He is also a self proclaimed 'nerdy' guy. Klosterman has written the book as a series of essays, claiming they were written in the wee hours of the morning, when things become most clear.