The course is addressed to undergraduate students with no prerequisites on geology. The aim of the course is to introduce to the students an advanced knowledge and skills development on themes related with the recognition of common rocks and minerals. The students are also familiarised with the basic concepts of the geological time scale and the methodologies of measuring time of the rock’s formation and evolution. The course also offers knowledge on the basic principles of deformation structures in rocks as well as the basic principles of earthquakes and their consequences in the natural and man-made environment. Additionally, the basic geotechnical characteristics of soils and rocks, elements of surface and subsurface water, creation and classification of landslides and engineering geological problems prevailing in the geological units of the Hellenic territory, are examined. Finally, the students learn about the more important geological parameters that influence the construction of technical works.