How many Calvin and Hobbes books are there and what are they all called?

18 ; Calvin and Hobbes , Something Under the Bed Is Drooling , The Essential Calvin and Hobbes: A Calvin and Hobbes Treasury , Yukon Ho! , Weirdos from Another Planet! , The Authoritative Calvin and Hobbes: A Calvin and Hobbes Treasury , The Revenge of the Baby-Sat , The Calvin and Hobbes Lazy Sunday Book: A Collection of Sunday Calvin and Hobbes Cartoons , Scientific Progress Goes "Boink" , The Indispensable Calvin and Hobbes: A Calvin and Hobbes Treasury , Attack of the Deranged Mutant Killer Monster Snow Goons , The Days Are Just Packed , Homicidal Psycho Jungle Cat , Calvin and Hobbes: The Tenth Anniversary Book , There's Treasure Everywhere , It's a Magical World , Calvin and Hobbes: Sunday Pages, 1985-1995 and the omnibus The Complete Calvin and Hobbes .