So far there're three 图书 out. The first two have two 图书 in each of them. They're incredible! Some parts are slow and really hard to follow, so if you're going to read it then don't quit 或者 anything! :) It's an awesome series. A 爱情 三角形, 三角 between Elena, Stefan, and Damon.
well the only way i found out how many book there are is 由 going to the authors website which is link and it has all the information about the books. but i haven't read them yet so i can't tell 你 if there any good. but there making a vampire diaries tv 显示 which starts september 10th if wanted to know even though that wasn't part of your question.