Using Alejandro Jodorowsky’s book « La Voie du Tarot », I worked on finding a design principle to explain how this specific type of card can be understood in a rational way, thus extracting it from the « tacky » graphic standards usually used in esoterism. 
To obtain that result, I did research on every Tarot card, learned how to read it, tried to grasp their global architecture once put all together. 
The book references the scientific world through the different layouts.