Cosmology is a science which is experiencing a great development in the last decades. The achievements in the observations are driven the subject into an era of precision. The two fundamental pillars upon which observational cosmology rests are the cosmic microwave background and the distribution of the galaxies. The analysis of the huge amount of data that is now being collected in both areas will provided a unified framework to explain the formation and evolution of the large-scale structure in the universe. In this paper we will review some of the aspects related with the galaxy clustering.