Snuff seems like a logical follow up to Thud! I loved Thud! Should I therefore love Snuff? It is not as good, altough I do not believe I loved Thud! quite that much the first time I read it. I think I will be reading Snuff again; and while Thud! will always be better to me, Snuff is still great. 
 Snuff has Vimes as the main focus, and shows his growth into a doting father and (heaven forbid) an actual Duke. The development of other characters is just as good (the Poo lady!?) but I would have liked to have seen more focus on the individual goblins. Still, Pratchett does not write huge books; his are light and easy to read. How many characters can he logically delve into in one book? I enjoyed Feeney and Willikins, and the fact that Vimes knowingly employed Vetinari's techniques in dealing with others in difficult situations. 
 The exhaustive details on unggue pots seemed overlong, and the Fred Colon plot line seemed contrived. I did not like having the Summoning Dark as a semi-sentient part of Sam's psyche; after all his victory over it was one of the best parts of Thud! These were minor details, though, and since I loved Sam's ability to see in the dark, and Fred and unggue pots were needed to finish the story, I forgive their necessity.