In my thesis, I took a deep dive into the evolution of typography, with an emphasis on the transition from traditional to variable letters. I studied the history of typography, from its early forms to contemporary digital innovations. I particularly referred to the impact of technology on the development of typography, especially on the development of 20th century computer innovations, which played a key role in shaping today's typefaces. The main focus of this thesis is on the revolutionary emergence of variable fonts, which represent a new era in the world of typography and graphic design. These fonts allow us not only greater flexibility, but also more precise control over typographic elements. In addition to the theoretical overview, I have described in detail the practical process of creating a variable font, from project setup to the technical and creative challenges I have encountered. Through this thesis, I wanted to show that variable fonts are not just a contemporary trend, but a powerful tool that provides us with unlimited possibilities in shaping and personalizing typography for today’s communication needs.