Data Science can be defined as a process of discovering new and significant relationships, patterns and trends when examining large amounts of data. The techniques of Data Science pursue the automatic discovery of the knowledge contained in the information stored in an orderly manner in large databases. These techniques aim to discover patterns, profiles and trends through the analysis of data using advanced statistical techniques of multivariate data analysis. This book develops the initial part of data science using MATLAB. It delves into the organization of data, descriptive statistics and data visualization.