Jordon,
The list Jason Topp offered looks to be a fantastic list in response to your question. I would like to add three books missing from his list.
Golfer-At-Large, by Charles Price
The American Golfer, edited by Charles Price
The Complete Golfer, edited by Herbert Warren Wind.
Golfer-At-Large, is currently available online at Alibris
http://www.alibris.com/search/search.cfm?qwork=2653888&wtopic=golf&wauth=price%2C%20charles&ptit=Golfer%2Dat%2Dlarge%20%3A%20new%20slants%20on%20an%20ancient%20game&pauth=Price%2C%20Charles&pisbn=&pqty=15&pqtynew=0&pbest=2%2E95&matches=15&qsort=r&cm_re=works*listing*title
The other two are available at Classic Of Golf
http://shop.classicsofgolf.com/servlet/StoreFrontWhen I was your age, caddying in High School in the early 1980s, Charles Price had a monthly column in Golf Digest (as did Peter Dobereiner, and all of his books are worth reading). His columns really introduced the history of golf and the great courses to a kid growing up middle class in the suburbs of St. Louis, without an internet. Golfer-At-Large is a collection of about 2 dozen of his articles and essays. A new golf fanatic will love the stories Price has to tell and you will learn a lot about golf.
For those you want to expand your interests beyond golf (which I highly agree with), when you get tired of your assigned reading, but want something with some depth, just read anything by J.D. Salinger (Nine Short Stories is the best of his work), Truman Capote (In Cold Blood), anything Gore Vidal writes about history, Ken Kesey, early stuff by Hunter S. Thompson, and John Updike's short stories.
Remember when you are reading for your own pleasure, do not keep reading a book when it becomes a chore, just because it is something you "ought to have read". Put it down for a few months then try it again. If this does not work, put it down again and wait a few years. If it never becomes interesting give it up. Besides, you will never be able read all you "ought to have read", and there are always courses to be played.
Good luck on you school year.
(I am off to the library myself on this Friday night.)