In this comprehensive tutorial, we demonstrate how to integrate pgRouting with PostGIS in QGIS for powerful network routing analysis. You'll learn how to set up a routing model on a PostgreSQL/PostGIS database from scratch and then use QGIS to visualize the shortest path between two points on a map. We walk through each step of importing your road network data, enabling pgRouting functions, and performing route calculations directly within QGIS's user-friendly interface. This hands-on demonstration shows how QGIS can serve as a front-end for robust, database-driven analysis by highlighting a real example of finding the fastest route from point A to B.