[kemayo]

Main argument against starting with Color of Magic would be that it's different enough from the rest of the series that it's not entirely useful for knowing whether you'll want to read the rest.

It and Light Fantastic are both fantasy-parody travelogues, which are mostly about the protagonists moving through a sequence of largely disconnected pastiches of other fantasy works. After this the series rapidly switches to fantasy as metaphor for real-world situations, with the fantasy elements being more broad tropes rather than specifics references.

[travisgriggs]

They are by far the most Monty Pythonesque of the books. If you enjoy that, look for all of the Rincewind books. If you like less of that, avoid the Rincewind books (IMHO).