Just to insert a counter point to the Discworld reading order, here is Sir Pratchett's guidance for where (not) to start the series (bold and color added):
"...I find it now rather embarrassing that people beginning the Discworld series start with The Colour of Magic and The Light Fantastic, which I don't think are some of the best books to start with.
This is the author saying this, folk. Do not start at the beginning with Discworld."
-- Terry Pratchett.
From this post:
https://www.mobileread.com/forums/sho...47#post3036947