Who is Mark Leyner from A Supposedly Fun Thing I'll Never Do Again: Essays and Arguments and what is their importance?

Mark Leyner is a New Jersey copywriter. He is the author of the Image-fiction novel "My Cousin, My Gastroenterologist." Leyner's novel is littered with pop-culture references to suggest that is all people have become. Leyner solves the problem of irony by embracing it.