Description / Table of Contents: Forum Lectures and Special Lecture: On the prediction of landslides and their consequences -- Design recommendations for single and dual rigid debris flow barriers with and without basal clearance -- The rockfall failure hazard assessment: summary and new advances -- Progress and lessons learned from responses to landslide disasters -- Behind-the-scenes in mitigation of landslides and other geohazards in low income countries - in memory of Hiroshi Fukuoka -- The impact of climate change on landslide hazard and risk -- Sendai Landslide Partnerships, Kyoto Landslide Commitment, and International programme on Landslides: Kyoto 2020 Commitment for Global Promotion of Understanding and Reducing Landslide Disaster Risk -- International Consortium on Landslides -- The ICL journal Landslides - 16 years of capacity development for landslide risk reduction -- UNESCO/KU/ICL UNITWIN Cooperation Programme-Members and recent activities -- International Programme on Landslides (IPL) -- SATREPS project for Sri Lanka with regard to “Development of early warning technology of Rain-induced Rapid and Long-travelling Landslides” -- Central Asia – rockslides' and rock avalanches' treasury and workbook -- Results of recent monitoring activities on landslide Umka, Belgrade, Serbia - IPL 181 -- Landslides in Weathered Flysch: From Activation to Deposition (WCoE 2017-2020) -- Report of the Croatian WCoE 2017-2020: From landslide mapping to risk assessment -- LARAM School: an ongoing experience -- Advanced technologies for Landslides (WCoE 2017-2020) -- Extreme rainfall event and its aftermath analysis - IPL 210 project progress report -- Complex geomorphological and engineering geological research of landslides with adverse societal impacts -- Report of the IPL-219, IPL-220 and Croatian WCoE 2017-2020: From landslide investigation to landslide prediction and stabilization -- Landslide-induced Tsunamis: Simulation of Tsunami waves induced by coastal and submarine landslides in Japan -- On the use of statistical analysis to understand submarine landslide processes and assess their hazard -- The continuing underestimated tsunami hazard from submarine landslides -- December 11, 2018 landslide and 90-m icy tsunami in the Bureya water reservoir -- The link between upper-slope submarine landslides and mass transport deposits in the hadal trenchs -- Tsunami from the San Andrés Landslide on El Hierro, Canary Islands: first attempt using simple scenario -- A sedimentological study of turbidite layers on a deep–sea terrace in the Japan Trench -- Flank failure of the volcanic Turtle Island and the submarine landslide in the southernmost Okinawa Trough -- Numerical simulation for tsunami generation due to a landslide -- Dealing with mass flow-induced tsunamis at Stromboli volcano: monitoring strategies through multi-platform remote sensing -- Detailed seafloor observation on a deep-sea terrace along the Japan Trench after the 2011 Tohoku Earthquake -- Landslides at UNESCO designates sites and contribution from WMO, FAO, IRDR -- Landslides at UNESCO-designated sites -- Traditional knowledge and local expertise in landslide risk mitigation of world heritages sites -- Reconstruction of the slope instability conditions before the 2016 failure in an urbanized district of Florence (Italy), a UNESCO World Heritage Site -- Integrating Kinematic analysis and Infrared Thermography for instability processes assessment in the rupestrian monastery complex of David Gareja (Georgia) -- Shallow landslide susceptibility assessment in the High City of Antananarivo (Madagascar) -- Thermo-mechanical cliff stability at tomb KV42 in the Valley of the Kings, Egypt -- Collaboration in MHEWS through an Integrated Way: The Great Efforts Contributed by Multi-stakeholder Partnership at National, Regional and International Levels -- Resilient Watershed Management: Landscape Approach to Climate Change and Disaster Risk Reduction -- Integrating DRR into the conservation and management mechanisms of the internationally designated sites – view of IRDR -- Landslide hazard and risk assessment for civil protection early response -- Size matters: the impact of small, medium and large landslide disasters -- Practices of Public Participation Early Warning System for Geological Hazards in China -- Education and Capacity Development for Risk Management and Risk Governance -- Early warning systems in Italy: state-of-the-art and future trends -- Community-based landslide risk management in contrasting social environments, cases from the Czech Republic -- Refinement Progresses on Freeway Slope Maintenance after a Huge Landslide Disaster -- Landslide exposure community-based mapping: a first encounter in a small rural locality of Mexico -- Co-producing data and decision support tools to reduce landslide risk in the humid tropics -- ICT-based landslide disaster simulation drill: Road to achieve 2030 global commitment -- A Preliminary Work of Safety Potential Analysis Model for Anchors Used on Freeway Slopes -- Initial Experiences of Community Involvement in an Early Warning System in Informal Settlements in Medellín, Colombia -- Capacity Building and Community Preparedness towards Landslide Disaster in Pagerharjo Village, Kulon Progo Regency of Yogyakarta, Indonesia -- Protection of a cultural heritage site in Croatia from rockfall occurrences -- Cutting-edge technologies aiming for better outcomes of landslide disaster mitigation.