If you are reading E-book editions, always try to get one with annotations. Don't read them until after you've finished the book, this way you avoid spoilers, and you can better understand the "bigger picture" of what's going on in the book. The annotations are awesome too go back and read. Plus, it helps make the book last longer. It's not totally over once you finish reading it. You've still got more to read. I'm often sad once I finish a book, but this way, you still have wonderful insights and it extends the novel for you.