How many books of Diary of a Wimpy Kid will there be?

Answer 1

Through 2011, there are 6 books and 2 associated volumes.

The US release dates were:

1. Diary of a Wimpy Kid (April 1, 2007)

2. Diary of a Wimpy Kid: Rodrick Rules (February 1, 2008)

3. Diary of a Wimpy Kid: The Last Straw (January 13, 2009)

4. Diary of a Wimpy Kid: Dog Days (October 12, 2009)

5. Diary of a Wimpy Kid: The Ugly Truth (November 9, 2010)

6. Diary of a Wimpy Kid : Cabin Fever (November 15, 2011)

and two extra books:

* The Wimpy Kid Movie Diary

(an extended edition "Movie Diary 2" features material from Rodrick Rules)

* Diary of a Wimpy Kid Do-It-Yourself Book

(an extended version features more pages and comics)

Answer 2

Right now there are 6 including the movie diary. But there is a new one coming out later in the year called cabin fever