Subject: I can help you there!
Author:
Posted on: 2010-07-16 20:30:00 UTC
So, in order of publication (but not necessarily chronological order), the books run thusly:
1. The Colour of Magic (1983)
2. The Light Fantastic (1986)
3. Equal Rites (1987)
4. Mort (1987)
5. Sourcery (1988)
6. Wyrd Sisters (1988)
7. Pyramids (1989)
8. Guards! Guards! (1989)
9. Eric (1990)
10. Moving Pictures (1990)
11. Reaper Man (1991)
12. Witches Abroad (1991)
13. Small Gods (1992)
14. Lords and Ladies (1992)
15. Men at Arms (1993)
16. Soul Music (1994)
17. Interesting Times (1994)
18. Maskerade (1995)
19. Feet of Clay (1996)
20. Hogfather (1996)
21. Jingo (1997)
22. The Last Continent (1998)
23. Carpe Jugulum (1998)
24. The Fifth Elephant (1999)
25. The Truth (2000)
26. Thief of Time (2001)
27. Night Watch (2002)
28. Monstrous Regiment (2003)
29. Going Postal (2004)
30. Thud! (2005)
31. Making Money (2007)
32. Unseen Academicals (2009)
However, most of the books also correspond to various character arcs, focusing on one particular group of characters. By far and large, the Ankh-Morpork City Watch seems to be Pterry's favorite group to write about, with the wizards a close second.
Some of my personal favorites of the series include Guards, Guards! (wherein we're first introduced to the City Watch), Thief of Time, Thud!, Hogfather, The Last Continent, and Pyramids.