Treballs Finals de Grau de Matemàtiques, Facultat de Matemàtiques, Universitat de Barcelona, Any: 2018, Director: Xavier Jarque i Ribera i Núria Fagella Rabionet[en] In this final degree project it is studied the different types of dimension, like the fractal one, Box-Counting and Hausdorff’s. We will focus on finding and comparing these dimensions through several objects, among them, fractal sets. Then, we will study Julia’s set, its shapes and at the end we will connect those with the different definitions of dimensions.