A much friendlier/more accessible place to start is A Supposedly Fun Thing I'll Never Do Again (https://www.amazon.com/Supposedly-Fun-Thing-Never-Again/dp/0...), a collection of his essays. They're shorter, tighter and generally much better commute reading.
"A Supposedly Fun Thing I'll Never Do Again" the title essay of which is now available on the internet and is a terrific introduction to the late great American author (http://www.amazon.com/Supposedly-Fun-Thing-Never-Again/dp/03...)
"Consider the Lobster" (http://www.amazon.com/Consider-Lobster-David-Foster-Wallace/...)
Some of the few pieces of physical literature I actually own and chase back every time I lend them to someone.
Get dozens of book recommendations delivered straight to your inbox every Thursday.