It’s really not. But my suggestion is read some of his journalism (eg “A supposedly fun thing I’ll never do again” or “Getting away from already being pretty much away from it all”) or his first novel “Broom of the system” and if you like that, you’ll probably like “Infinite Jest”).
He’s also written some really thoughtful literary criticism if you like that sort of thing (“Fictional futures and the conspicuously young” is a good example).
Hint: this question is easy if you passed high school English.