I have a not so minor obsession with all things troll related. My very favorite troll book of all time is D'Aulaire's Trolls. A close second is Berenstain's Trolls book. And now this one is a close third. The very best thing about this are the illustrations which are gruesome, funny, and surprising all at once. I think the stories are strongest in D'Aulaires, but if you're a fan of trolls this one shouldn't be missed!