The paper "Inventory and Quantitative Assessment of Geosites and Geodiversity Sites: a Review" by José Brilha discusses the importance of inventorying and assessing valuable geodiversity sites for geoconservation strategies. It highlights the challenges in selecting and protecting these sites due to their scientific, educational, and cultural value. The author proposes a systematic approach to inventorying and quantifying the value and degradation risk of geosites and geodiversity sites, emphasizing the need for clear criteria and a solid methodology. The paper reviews existing procedures and proposes new criteria for selecting geosites based on scientific value and geodiversity sites based on educational and touristic potential. It also presents guidelines for effective inventorying and quantification methods, which are crucial for supporting geoheritage management and geoconservation actions. The paper concludes by emphasizing the importance of a well-structured inventory and quantitative assessment for prioritizing and managing geosites and geodiversity sites effectively.The paper "Inventory and Quantitative Assessment of Geosites and Geodiversity Sites: a Review" by José Brilha discusses the importance of inventorying and assessing valuable geodiversity sites for geoconservation strategies. It highlights the challenges in selecting and protecting these sites due to their scientific, educational, and cultural value. The author proposes a systematic approach to inventorying and quantifying the value and degradation risk of geosites and geodiversity sites, emphasizing the need for clear criteria and a solid methodology. The paper reviews existing procedures and proposes new criteria for selecting geosites based on scientific value and geodiversity sites based on educational and touristic potential. It also presents guidelines for effective inventorying and quantification methods, which are crucial for supporting geoheritage management and geoconservation actions. The paper concludes by emphasizing the importance of a well-structured inventory and quantitative assessment for prioritizing and managing geosites and geodiversity sites effectively.