The International Association of Cancer Registries (IACR) resumed in-person participation at its annual scientific conference last week in Granada, Spain. The 2023 conference was organized jointly with the European Network of Cancer Registries (ENCR) and hosted by the Andalusian School of Public Health and the Cancer Registry of Granada led by Professor María José Sánchez Pérez. The meeting was attended by more than 350 participants and included themes covering special populations research, registry innovation, COVID-19 (coronavirus disease) impact, staging and comorbidity, and clinical applications.