1. Kissed by an Angel (2001)
2. Touched by an Angel (2002)
3. Haunted by an Angel (2003)
4. Loved by an Angel (2004)
5. Saved by an Angel (2005)
6. Whispered by an Angel (2006)
7. Bound by an Angel (2007)
8. Guarded by an Angel (2008)
9. Hunted by an Angel (2009)
10. Chosen by an Angel (2010)
11. Marked by an Angel (2011)
12. Stolen by an Angel (2012)
13. Protected by an Angel (2013)
14. Defended by an Angel (2014)
15. Healed by an Angel (2015)
16. Forgiven by an Angel (2016)
17. United by an Angel (2017)
18. Revealed by an Angel (2018)
Please note that there is also a "Kissed by an Angel: Angel of the Year" series, which is a spin-off series set in the same world. These books can be read independently of the main series.