Rheology is the science that deals with the flow and the strain rate of matter.It’s a branch of Physics that studies the origin, the nature and the deformation’s characteristics of a matter under the influence of external forces, with particular regard to non-Newtonian liquids. Its main goal is to define the correlations between causes (forces) and effects (deformations and flows), identifying all mechanisms that are the basis of the different rheological behavior on a microscopic and molecular scale.The episode offers an overview about the most important rheological behaviors of ceramic suspensions: barbottine, glaze and grit suspensions, engobes and inks.All these mixtures, in fact, in order to develop a good application and avoid serious problems along the production lines, must be marked by proper rheological features.Which ones?