Four videos and as many infographics to understand what happens in the Operations Rooms of the National Institute of Geophysics and Volcanology in Rome, Naples and Catania Telling the complex monitoring and surveillance activities of the INGV Operations Rooms with drawings and animations: this is the objective that the INGV seismologists and volcanologists have set themselves in the videos and infographics just published on the INGVterremoti and INGVvulcani blogs and created in scope of the FISR Project "Operational Rooms and Monitoring Networks of the future: INGV 2.0". THENational Earthquake Observatory, Tsunami Warning Center,Vesuvius Observatory andEtna Observatory operate h24, 7 days a week, to guarantee seismic and volcanic surveillance and alerts in the event of tsunamis. In the Operating Rooms of Rome, Naples and Catania, which constitute the "beating heart" of the four centres, the signals of the multi-parameter instruments located throughout the national territory arrive monitoring networks. The signals that arrive in the Halls in real time are collected, compared and examined as a whole through automatic and semi-automatic procedures and, finally, they are evaluated by specialized INGV personnel. The infographics and videos show how the seismicity of the entire national territory is monitored in the Seismic Surveillance and Tsunami Alert Room of the National Earthquake Observatory (ONT-INGV) in Rome and how, thanks to the staff of the Tsunami Alert Center (CAT-INGV) , seismic and tidal wave data are analyzed in real time in the event of an earthquake potentially capable of generating a tsunami in the Mediterranean Sea. In the Naples Operations Room of the Vesuvius Observatory (OV-INGV) the Campanian volcanic areas of Vesuvius, Campi Flegrei and the island of Ischia are monitored. Finally, in the Catania Operations Room of the Etneo Observatory (OE-INGV) the activities of the Sicilian volcanoes are monitored, in particular Etna and the Aeolian Islands.