Patience, Marky, patience. You've been waiting all this time to kick off.

I agree with the others that the earlier dicworld books are lighter and funnier and later ones are darker and deeper, still funny though. IMO
The Colour of Magic is a bit 'thin' but from
The Light Fantastic pTerry - the technical term we use here and its copyright lawfully belongs to Chrispen according to rumours

gets better n better.