Ender's Game Series. The first book is more for kids, but the rest is holy forget complicated Science fiction.
1945: Red Inferno. It's historical fiction. :D WWII
1901. More historical fiction. WWI
Artemis Fowl is for kids, but it's still pretty badass.
Angels and Demons: Okay, loving best book ever.
The Da Vinci Code: Second book from above series. Still loving awesome.
The Lost Symbol: Third book, really great.
Edit: Edgar Allen Poe. :c So creepy