21 April 2008 - Digital Calvin and Hobbes forums

"The list of official stuff as far as I know

"The books,
2 calenders,
Teaching with Calvin and Hobbes,
and an art show tee-shirt."

http://www.calvin-and-hobbes.org/calvin/forums/general_forum/are_we_doing_what_watterson_feared

8 April 2008 - A Very Friday Blog

"Wikipedia says: 'Except for the books, two 16-month calendars, the textbook Teaching with Calvin and Hobbes, and one T-shirt for a traveling art exhibit on comics, virtually all Calvin and Hobbes merchandise is unauthorized.'"

http://veryfriday.blogspot.com/2008/04/urinating-calvin.html

6 April 2008 - Ame onda ninga omulongi

"There is actually a really rare official text book out there called Teaching with Calvin and Hobbes (at amazon), but it is ridiculously expensive and doesn't appear to have too much to do with the math that I will be teaching."

http://omulongi.blogspot.com/2008/04/angular-vs-linear-velocity.html

1 April 2008 - Open Library

"Teaching with Calvin and Hobbes
by Linda Holmen
Published in 1993, Playground Pub. (Fargo, ND)

"Contributions: Santella-Johnson, Mary., Watterson, Bill.
By statement: Linda Holmen, Mary Santella-Johnson ; cover & illustrations by Jan Roebken.
Source records: Library MARC record
Language: English
Pagination: viii, 188 p.

"ISBN 10: 1878849158
LCCN: 93085554
Dewey: 372.6/044
LC: LB1576 .H629 1993
OCLC: 29340469

"Genre: Handbooks, manuals, etc.
Subject: Language experience approach in education — Handbooks, manuals, etc
Comic books, strips, etc. in education — Handbooks, manuals, etc
Language arts (Elementary)

"Notes: Includes bibliographical references (p. 187). 'Whole language and humor for upper elementary and jr. high'--Cover."

http://openlibrary.org/b/OL1446515M/Teaching_with_Calvin_and_Hobbes