In my master's thesis I have given attention to the Slovenian mythological space. This is how Encyclopedia mythologica Slovenica; first illustrated encyclopedia of Slovenian mythological creatures, has been created. It contains over 100 illustrations with the addition of a description of each creature individually. I have connected different beings to different categories, I have especially categorized them according to the role and visuality and arranged them in alphabetical order individually in each chapter. The main source of research was the Slovenian folk tradition. In my work I also talk about the style of illustrations I developed for the purpose of Slovenian folklore, where I tried to place the symbols of Slovenian national legacy in every step of the way. In the wider context of mythology research I tried to explain a myth; what is a myth, the research and the problems of Slovenian mythology. I have also touched Junge's archetypal theory, and Barthes's Mythology, the functions of mythology, etc. The purpose of this project was to fill in the stub in the cultural field and offer an encyclopedia filled with illustrations, which will not only provide a visual effect, but also knowledge; a sense of identity, fiction and commentary and above all, I wanted to present myth as a living entity which still breathes and develops with us, although it sometimes sits quietly and waits for us to notice it.