Risk modeling is a very complex task. It requires plenty of information and the result may take many different forms. In that case, it is not simple for a model designer to produce the perfect render. Aurelien Couloumy, thanks to a book La bibliothéconomie by L-A CONSTANTIN, found a similarity between library and models. In this document, you will discover all his researches and ideas for this subject in order to know how relevant this comparison may be.