The Chronicles of Narnia (Leatherbound Edition) by C.S. Lewis
Can it really be Christmas without a little Narnia magic? Perhaps, but it probably won't be the same!
Have I read all of the books yet? I admit that, no, I haven't. I'm taking my sweet time (and of course, reading them out of order). I read the first one back in college, a few weeks before the movie came out. Yeah, I'm one of those geeks that likes to compare the movies to the books. But it only takes one book before you realize that they're going to be great fun. I love Lewis's writing style - it's like a fun sort of omniscient. Aslan is always impressive, and you never know what's going to happen next or where you might go - since on occasion you do venture outside of Narnia. It's not all witches and wardrobes you know!
And yes, I totally own the leatherbound edition made by B&N. And why not? It's gorgeous, affordable, and will last a lot longer than paperbacks. Of course, if you have kids, they might be better off with something you don't expect to last for very long. Whatever the format, kids and adults all want to visit Narnia!