How many books are there in James murder club series?

There are currently 11 books in James Patterson's Alex Cross series, which features the character Alex Cross, a detective who is part of a murder club.

Here is the list:

1. Along Came a Spider (1993)

2. Kiss the Girls (1995)

3. Jack & Jill (1997)

4. Cat & Mouse (1999)

5. Roses Are Red (2001)

6. Pop Goes the Weasel (2003)

7. Cross (2006)

8. Alex Cross, Run (2009)

9. The 7th (2011)

10. Cross Justice (2014)

11. The People vs. Alex Cross (2017)

Note: The series actually has 16 books in total, but 5 of them are standalone books that don't feature the Murder Club as prominently.