In my master’s thesis, I discuss the theory of a drawing and a drawing’s characteristics in the first part, and the practical production – a series of drawings titled Crystallizations (2018/2019) – in the second part. My work is explained through some basic characteristics of the medium. Firstly, the thesis outlines the theory of a drawing, and presents the materials specific to a drawing. Furthermore, it considers a drawing in its historical perspective, and explores the role of a drawing in Art. I continue with the theory of a line and a blot. In the analysis of the connection between a blot and a tree through the perspective of the History of Art, I mainly refer to the 18th century British artist Alexander Cozens. I proceed with the iconographic study of a motif of a tree since my artwork revolves around it – more specifically around conifers. I investigate their properties and symbolic meaning, and try to make it visible on my drawings as well. One of the central works of art I discuss in my thesis is Macesen (The Larch) by the Slovene Impressionist painter Ivan Grohar. I explore the motif of a tree employed by some other contemporary artists as well. Another phenomenon I explore is how the geometric pattern observed in branches of broad-leaved trees calls to mind the fractal theory. The thesis concludes with placing drawings in a space. Thus, a drawing undergoes a transformation from a two-dimensional to a three-dimensional work of art, which is a perfect opportunity to observe the relationship between my work and installation art.