Mario Campanelli is an experienced researcher who has been associated with CERN for many years. He graduated with honours from the University of Rome in 1995, during which he was a summer student on the L3 experiment at LEP, CERN. In fall 1995, he started his PhD at ETH Zurich and continue working on that experiment at LEP2 during its first years of running. He then took a research position, always at ETH, to work in the neutrino group. In 2001, he took up a long-term research position at University of Geneva to work on the Collider Detector at Fermilab. In spring 2007, he started working on the ATLAS experiment at CERN, which is still his main occupation now. In the same year, he also joined University College London as a lecturer, and he is now a reader (associate professor). He is involved in several science outreach activities and has written multiple books on his experience working in CERN.