There is no registration fee for the event, but for organization reasons you should email giovanna [dot] rosone [at] unipi [dot] it and rossano [dot] venturini [at] unipi [dot] it (or the GraphMasters 2019 organizers) to show your interest before July 18th. In alternative, attendants of IWOCA 2019 will get a chance to show their interest in the registration form.