At the beginning it was not easy to get used to the QGIS environment, and sometimes I just did some basic stuff, and then shift to ArcGIS to complete my work. The real jump to QGIS was the second time I taught “GIS on Water Resources Managenment” course at PUCP in Lima. In a moment of academic, artistic and open minded inspiration I decided to change the GIS software from ArcView to QGIS. The logic behind that was: if I gave the course in QGIS, I would end learning QGIS as well. The university environment allows you to make these kind of experiments.