This article is from the Libraries FAQ, by Anthony Wilson email@example.com with numerous contributions by others.
In Canada, Canadian Subject Headings, see
http://188.8.131.52/techserv/cat/Sect03/c03c35.html is often used.
Sears is another classification system.
Randall W. Scott at Michigan State University Libraries has developed
a schedule (which he uses in conjunction with LCSH) for sequential art
material (i.e. comic books and strips). This appeared in his _Comics
Librarianship: A Handbook_(Jefferson: McFarland, 1990). For more
information on it, e-mail him at firstname.lastname@example.org or check out his
homepage at http://www.lib.msu.edu/comics/index.htm .
Information on David Elazar's "A Classification System for Libraries
of Judaica" can be found at his home page: