So here's a note on George R.R. Martin's series that has become so famously popular (and rightly so!) by the new(ish) HBO series, Game of Thrones: READ THE BOOKS.
If you like fantasy, swordplay, zombies, dragons, quests, knights, princesses, sex, wine, and rock and roll, this is a series for you.
I started reading the first one last summer and I'm now currently reading the fourth book, A Feast for Crows. Just keep in mind that each book is between 800 and 1000 pages, which can be daunting at first. But a week or two later when you're deep in the throes of madness in King's Landing, you'll be glad you gave it a try. I won't even give away any spoilers.
At this point, there will be seven books, at least that's what George R.R. Martin has said. These are the five that are out currently.