1: I hate to sound generic, but I actually do very much enjoy the Harry Potter series. It's an easily digestible read, it's entertaining, and perhaps most significantly, it's what got me into reading books to begin with.
2: Warbreaker by Brandon Sanderson. I love Brandon Sanderson's books, because, while they revolve around magic, the magic is never the generic spell casting witchcraft and wizardry. In Elantris, a society of people reached apotheosis by having their city in the midst of a large symbol, which was essential to the symbol based magic of the world. In Warbreaker, their magic is determined by their Breath, and how much of it they have. More interestingly is the way he uses color in the book, making the printed pages appear like rainbows.
3: The Halo books.
These may very well have been what got me into gaming. They're an excellent read, my personal favorite being the Fall of Reach, which details the Spartan-II program through the eyes of John-117. This is irrelevant to the quality of the novel itself, but the copy I have is very tattered, and really should be replaced, but I can't bring myself to do it. After all, it's tattered because of my own constant reading. The pages are yellowed, and the scent they give off is really pleasing.