hey dum dum what are you doing in this club if you dont even know what the first Twilight saga book is!!! Well here is the order:Twilight,New Moon,Eclipse,Breaking Dawn,and then robert p.'s version of Twilight i think it begins with Sunrise.
Twilight is the first book in the series,followed by New Moon,Eclipse and Breaking Dawn.There is also an unfinished version of Twilight in Edward's POV called Midnight Sun,on Stephenie Meyer's website,and a short novella called The Short Second life of Bree Tanner.