What is the chronological order of Confessions a Shopaholic books?

Here is the chronological order of the Confessions of a Shopaholic series by Sophie Kinsella:

1. Confessions of a Shopaholic (2000)

2. The Secret Life of a Shopaholic (2001)

3. Shopaholic & Sister (2002)

4. Shopaholic Ties the Knot (2004)

5. Shopaholic & Baby (2007)

6. Shopaholic to the Stars (2011)

7. Shopaholic in the City (2013)

8. Shopaholic and the Big Boy (2018)

It's worth noting that there are also some spin-off books featuring other characters in the Shopaholic universe. These are not included in the main chronological list above.