http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 online resource (1 video file (00:24:44)) : sound, colour.
Andy Kirk reviews the five families of charts--categorical, hierarchical, relational, temporal, and spacial--with two or three examples of each showing what type of data each is best suited for and when to use them.