The 3rd ESTRO Forum will provide a wonderful platform in which to explore innovations and the latest advances in radiation oncology. Five meetings, each offering an outstanding scientific programme, will be hosted in parallel under its umbrella: Clinical and translational meeting Biennial physics meeting GEC-ESTRO-ISIORT meeting RTT meeting PREVENT and TARGET meetings Placing interdisciplinarity under the spotlight, clinicians, physicists, brachytherapists, radiobiologists and radiation therapists (RTTs) will also find, in addition to the five meetings, a broad range of interdisciplinary sessions in which they can participate to explore topics of interest to all.