Martin Keller has a PhD in Natural Sciences and the Habilitation* in Geosciences. He has been involved in Academic Research for 25 years including supervision of Master and PhD thesis in the fields of Sedimentology, Basin Analysis, Plate Tectonics, and some Structural Geology. Research brought him to Spain, South America, and the Western USA. Since 2009, Martin is working in Saudi Arabia, first as a Consultant for Geology and Hydrogeology for some of the major water resources projects. In 2015, he was appointed Senior Advisor for Geosciences at the Ministry of Environment, Water, and Agriculture. He is now the Chief Technical Advisor for a UNDP project in the Ministry for "Capacity Building in the Water Sector of the Kingdom".