  Jassology is a global theory on orientable maps which results from artistic
experiments. The objective of this article is to define and describe the
essential tools of Jassologic process, wich consists in associating a word,
called Jassologic Word, to a planar trivalent rooted map. The original method
is based on breaking down a map into layers of cells called "Jasses", which
means "layers" in Provence. We also describe in details the set of Jassologic
Words, whose alphabet is composed of 16 specified caracters (Catherine Mouet's
caracters). And we explain how to construct a planar trivalent rooted map from
any Jassologic Word. We obtain a bijection between Jassologic Words and the
equivalence classes of planar trivalent rooted maps. In particular, two planar
trivalent rooted maps are equivalent if and only if their correspondant
Jassologic Words are the same. From a computer science point of view,
Jassologic process is an algorithm which doesn't use any handling of images.
