All of the information on this website, with the exception of the quotes (from http://chquotes.synthasite.com/calvin-and-hobbes-quotes1.php), tributes (from http://picpak.net/calvin/), and the John Calvin and Thomas Hobbes image (see bottom), is taken from the following books or the source is cited on the page:
Watterson, B. (1987) Calvin and Hobbes. Kansas City, MO: Andrews McMeel.
Watterson, B. (1988) Something Under The Bed Is Drooling. Kansas City, MO: Andrews McMeel.
Watterson, B. (1988) The Essential Calvin and Hobbes. Kansas City, MO: Andrews McMeel.
Watterson, B. (1989) Yukon Ho!. Kansas City, MO: Andrews McMeel.
Watterson, B. (1989) The Calvin and Hobbes Lazy Sunday Book. Kansas City, MO: Andrews McMeel.
Watterson, B. (1990) Weirdos From Another Planet. Kansas City, MO: Andrews McMeel.
Watterson, B. (1990) The Authoritative Calvin and Hobbes. Kansas City, MO: Andrews McMeel.
Watterson, B. (1991) The Revenge of the Baby-Sat. Kansas City, MO: Andrews McMeel.
Watterson, B. (1991) Scientific Progress Goes ‘Boink’. Kansas City, MO: Andrews McMeel.
Watterson, B. (1992) The Essential Calvin and Hobbes. Kansas City, MO: Andrews McMeel.
Watterson, B. (1992) Attack of the Deranged Mutant Killer Monster Snow Goons. Kansas City, MO: Andrews McMeel.
Watterson, B. (1993) The Days Are Just Packed. Kansas City, MO: Andrews McMeel.
Watterson, B. (1994) Homicidal Psycho Jungle Cat. Kansas City, MO: Andrews McMeel.
Watterson, B. (1995) The Calvin and Hobbes Tenth Anniversary Book. Kansas City, MO: Andrews McMeel.
Watterson, B. (1996) There’s Tresure Everywhere. Kansas City, MO: Andrews McMeel.
Watterson, B. (1996) It’s A Magical World. Kansas City, MO: Andrews McMeel.
Watterson, B. (2001) Calvin and Hobbes Sunday Pages 1985-1995. Kansas City, MO: Andrews McMeel.
Watterson, B. (2005) The Complete Calvin and Hobbes. Kansas City, MO: Andrews McMeel.
John Calvin and Thomas Hobbes Tribute