Thanks to the digitalization of some of its processes, the ceramic industry has evolved pretty significantly over the last few years, and in this perspective the digital printing system plays one of the most important roles. In fact, the use of digital inks has made it possible to almost totally replace the old decoration systems. Their formulation and therefore their production is very delicate and complex, since it must strictly comply with specific parameters. What are digital inks? What are their components and their most important properties? The episode tries to give simple answers to those questions, offering a short identikit of this important category of products.