Years ago I read a disc world book for the first time, the wee free men, I can't remember much except I loved it.. Now I've bought the colour of magic and planning to slowly read them all. Is there a certain order recommended? I was planning to go by chronological order but thought I'd ask :)
For what it's worth Terry Pratchett (the author) suggested starting with Sourcery which is the fifth book.
Regardless, you're in for a great time. But if the first book doesn't quite jive, I strongly recommend following Pratchett's advice and trying Sourcery which is a much more polished, "Discworld-y" story.
I've never seen a source on that suggestion to start with Sourcery. I'd certainly push people to a none-Rincewind story. Guards! Guards!, Wyrd Sisters or Small Gods.