Marie-Luise Frey is a geologist by training at Rhenish Westfalian Technical University Aachen (RWTH) (Germany). She led the Messel Pit World Heritage Non-profit limited company in Hesse (Germany) as the Managing Director (10/2003-04/2023). From her position at RWTH Aachen (Faculty of Mining, Metallurgy and Geosciences), she developed and implemented the first worldwide Geo-Park Gerolstein/ Vulkaneifel (Germany, 1992-2003). She received a Dr. rer. nat. degree at RWTH Aachen (Germany) 08/1995 for her research on the technical properties on lime and limestones (Middle-Upper Devonian Reef Limestones in the Northern Eifel area, south from Aachen, Germany). Her research interests involve a high diversity of themes, e.g., geoheritage protection, assessment, geoscience popularization, communication, education, and geotourism in UNESCO Global Geoparks and World Heritage Sites. As a founding member of the European Geopark Network (EGN) and the Global Geopark Network (GGN), she has and supports the GGN in the Bureau/Executive Board for more than 25 years and was a member of the UNESCO Global Geoparks Council (2020-2024). Since May 2023 she works on "Terra Outreach" and goes ahead and supports the Global Geoparks Network as Individual Member in Working Groups.