JoshG
If you have an iPhone, go to the App store and download "iBooks"...
Then download (on iBooks) "The person and work of the Holy Spirit" by R. A. Torrey... Its free and its very good :) ...
It's probably the best book on the Holy Spirit I have ever read! (I'm not a young Christian. I am well learned)
Also, If you are a 'second blessing' seeker; the last 30 pages or so of the chapter "The Baptism With the Holy Spirit" is on 'how to be filled with the Spirit'... Very very helpfull and interesting... Great stories of transformed lives.
I mentioned 'evangelism' because Torrey was an AMAZING evangelist. He was D. L. Moody's associate evangelist and successor. There are some interesting evangelism insights in the book.