Introductory study on the Geographic Information Science (GIS) from GEOB 270 has benefited to my future career as in planning. The course is theory-based combined with computer laboratory which allows students to understand the concepts behind the computing processes while gained practical skills from applying the ArcGIS. Through lab assignment, I learned to identify accurate data files/sources from reliable sites; reselect and filter the useful information for analysis; use toolsets to integrate various data layer and produce map as the outcome of data visualization. The experiences with ArcGIS is crucial for decision-making in sustainable planning processes and an essential tool for performing spatial analysis.