1. There are 7 books out at the moment. The first two you can buy as one book and the 3rd and 4th you can buy as one. The 8th book is released this month. The 9th and 10th do not have release dates yet but will likely be November 2012, or in 2013/14. There is also a series that goes off the main series. This is called "Stefan's diaries". There are 3 books in this and the 4th will be released on the 8th of November.
2. There are different names for every book in the series. The books are split into what you could call "sub series".
The first four are in "The Vampire Diaries"
The first is "The Awakening"
This is in the same book as the second which is "The Struggle"
The third is "The Fury" and is in the same book as "The Dark Reunion" which is the fourth.
The next "sub series" is "The Return". There are three books in it and all are separately bought as individual books.
The first is "The Return: Nightfall"
The second is "The Return: Shadow Souls"
The third is "The Return: Midnight"
In November the first book for the next "sub series" is released
The "sub series" will be called "The Hunters"
The first book will be "The Hunters: Phantom"
The next two will be "The Hunters: Moonsong" and "The Hunters: Eternity"
In "Stefan's Diaries" There is 3 books published, two more yet to be released that are named and one that is to be released but not named yet.
They are: 1. Origins
2.Bloodlust
3. The Craving
4. The Ripper
5. The Asylum
3.No the tv show does have similarities and a lot of the main characters are still in it but the story line is quite different. There are only one or two bits the same. In the books Elena has a little sister but in the show she has a teenager brother that is one year younger. She has two friends called Meredith and Bonnie in the books and an enemy who used to be her friend called Caroline. In the show there is no Meredith and Bonnie and Caroline are both her friends. Another difference is how Elena looks. This caused a lot of out cry from fans because the Nina Dobrev who plays Elena in the show looks nothing like Elena in the books. This makes no difference later on because she suits the role. There are other characters that swap around, appear or disappear in the creation of the tv show but that list is really big. "Stefan's Diaries" is based off of the tv show instead of the main series. It helps explain the beginning of Stefan, Damon and Katherine and how they got to where they are now.
4. I love the books. I think "The Return" sub series is my favourite because I think it is written a lot better than "The Vampire Diaries" sub series. This may be because she took at twelve year break between the two sub series so she may have improved or changed writing styles. Anyway I still love the series and have every book out.
5. I love the show as well. At first I thought it was going to be stupid because it didn't follow the books. But the show is good in it's own way. There are so many twists and turns in the plot, I am always eager for the next episode.
You should definitely read "The Hunger Games". It is by Suzanne Collins and is my favourite books series along with The Vampire Diaries. There are three books in the series: The Hunger Games, Catching Fire and Mockingjay. I convinced all my friends to read it and they also love it. The movie for the first book is coming out in March.
There is the "Noughts and Crosses" series by Malorie Blackman. There are 4 books: Noughts and Crosses, Knife edge, Checkmate and Double Cross. Only one of my friends has read it and it is in my top 5 series.
Another is the "Tomorrow" series. It is by Australian author John Marsden. There are 7 books in the series: Tomorrow when the war begun (made into a movie), The dead of the night, The third day the frost, Darkness be my friend, Burning for revenge, The night is for hunting and The other side of dawn. Marsden also wrote what you could call and epilogue series made up of three books. It tells the story of the main character, Elle and what happened after the war. Top 5
James Patterson's "Maximum Ride". Fell in love with it 4 years ago and I am still reading it. There are seven books: Maximum Ride: The angel experiment, Maximum Ride: School;s out forever, Maximum Ride: Saving the world and other extreme sports, Maximum Ride:The final warning, Max, Fang, Angel.
Finally, Michael Grants "Gone" series. Another in my top 5. There are 4 books at the moment, one to be released and the final one to be completed. There is: Gone, Hunger, Lies, Plague. On April 3rd, 2012, "Fear" will be released. Michael Grant has posted 10 spoilers about it giving hints on what will happen. The final book will be called Light but that is all that is known.
All for today. My hands are tired