Back when I had time and ambition (i.e. childhood) I compiled a series of weird facts and characters from the entire Calvin and Hobbes collection. Get one of your C & H books and check for yourself. Page number and weird fact shown below...


The Complete Calvin and Hobbes - 2005 - 1440 pages, Black and White/Color (Sunday Strips). The complete compendium of all Calvin and Hobbes strips all in one beaautiful box set.
 
Calvin and Hobbes Sunday Pages 1985-1995 - 2002 - 95 pages, Selected color strips from the Calvin and Hobbes comics(Sunday Strips).
 
It's A Magical World - 1996 - 176 pages, Black and White/Color (Sunday Strips). Last book of original comics.
 
There's Treasure Everywhere - 1996 - 176 pages, Black and White/Color (Sunday Strips).
 
The Calvin and Hobbes Tenth Anniversary Book - 1995 - 208 pages, Black and White/Color (Sunday Strips). Contains selected (by Bill Watterson) strips from 1985 to 1995 with commentaries on individual strips and several essays on every aspect of Calvin and Hobbes, from syndicates to the characters. A must have.
 
Homicidal Psycho Jungle Cat - 1994 - 176 pages, Black and White/Color (Sunday Strips).
 
The Calvin and hobbes Lazy Sunday Book: A Collection of Sunday Calvin and Hobbes Comics - 1989 - 128 pages, All Color. Collection of Sunday strips from first five books. Includes 10 page story, "Spaceman Spiff: Interplanetary Explorer Extraordinaire". Afterword by Bill Watterson.
 
The Days Are Just Packed - 1993 - 176 pages, Black and White/Color (Sunday Strips). New, larger book format with colored Sunday strips.
 
Attack of the Deranged Mutant Killer Snow Goons - 1992 - 128 pages, Black and White
 
The Indispensable Calvin and Hobbes - 1992 - 256 pages, Black and White/Color (Sunday Strips). Compiles The Revenge of the Baby-Sat and Scientific Progress Goes "Boink". Includes several illustrated poems.
 
The Revenge of the Baby-Sat - 1991 - 128 pages, Black and White
 
Scientific Progress Goes "Boink" - 1991 - 128 pages, Black and White
 
The Authoritative Calvin and Hobbes: A Calvin and Hobbes Treasury - 1990 - 256 pages, Black and White/Color (Sunday Strips). Compiles Yukon Ho! and Weirdos From Another Planet! Includes 7 page story in which Calvin transmogrifies into an elephant.
 
Weirdos From Another Planet! - 1990 - 128 pages, Black and White
 
Yukon Ho! - 1989 - 128 pages, Black and White. Includes the Yukon Song.
 
The Essential Calvin and Hobbes: A Calvin and Hobbes Treasury - 1988 - 256 pages, Black and White/Color (Sunday Stips). Compiles Calvin and Hobbes and Something Under the Bed is Drooling. Includes 12-page "A Nauseous Nocturne" poem. Foreword by Charles Schultz
 
Something Under the Bed is Drooling - 1988 - 128 pages, Black and White. Foreword by Pat Oliphant
 
Calvin and Hobbes - 1987 - 128 pages, Black and White. Foreword by Garry Trudeau.