Quote: sootyj @ December 26 2011, 12:22 AM GMTPratchett's excelent but some of the books rely on you liking and knowing the characters in advance. Others are more accessible to the new reader.
I'd say Guards, Guards, Guards, The Colour of Magic and Equal Rites are all good starters.
Not sure about The Colour of Magic or Equal Rites as I do not think he really got to grips with what he was doing until Mort. Mort or Guards, Guards or Small Gods the best starting point for me. Or perhaps the Tiffany Aching trilogy.