Christian audio is offering this classic for free as an audiobook download. The Holiness of God by R. C. Sproul is one of my top ten books. (See the right side bar for my other top ten picks.) It had a wonderful influence on my conception of God and caused many things to "fall into place" for me. I highly recommend it. I read it in college and really wish I had read it sooner. And now that it's free, what excuse can you possible have? ;)
Thanks to Christian audio for making this tome available without cost... and for offering a different book each month for free!