The main purpose of these lectures is to give a pedagogical overview on the
possibility to classify and relate off-shell linear supermultiplets in the
context of supersymmetric mechanics. A special emphasis is given to a recent
graphical technique that turns out to be particularly effective for describing
many aspects of supersymmetric mechanics in a direct and simplifying way.Comment: 50 pages, based on lectures delivered at the Winter School on Modern
Trends in Supersymmetric Mechanics 7 - 12 March 2005, Frascati, Ital