Which Book Do I Order First From The Vampire Diaries?

So I’m confused. I know there are 7 books so far but when I tried to look for it there was one that had both books – The Awakening and The Struggle together called Volume 1. And then there were two separate books of the same with the Vampire Diaries characters on them. I was wondering which do I buy? Do both have the same exact story?

What Is The First Book In Vampire Diaries?

What is the first book in vampire diaries?
wat is the first book in vampire diaries?
and were can i find it?
do they sell them at wall-mart?