I've generally found that the City Watch books are my favorite ones in the Discworld, and the reason is His Grace, Commander (and Blackboard Monitor) Sir Samuel Vimes. He's a man that has to regularly go to the edge of the law to bring back the criminals that challenge society, and when the stakes are high he makes bigger and bigger moves. Everything from arresting a dragon to attempting to arrest two armies to taking werewolves and dwarves. Snuff focuses entirely on Vimes, and it's an excellent book for that.

It should be noted that this one feels a bit darker than other Watch books, and after two readings I can honestly say it is none the worse for wear. He's on vacation with Sybil and Young Sam, who is now 6 (and obsessed with poop). They're in the country, and Sam is confronted with the murder of a goblin girl, a species considered vermin around the Disc until Sam Vimes decides even they deserve justice.

Whether or not to read this book is a remarkably easy decision, and it really comes down to one question: Do you like the City Watch books? If you do, you will love Snuff. Easy as that. So go pick it up, read it, and feel free to thank me later.