2021 The COVID-19 pandemic forced us to postpone the MASCC/ISOO 2020 Annual Meeting, and it has forced us to convert the 2021 Annual Meeting into a totally virtual event. The dates of the Annual meeting are unchanged (June 24-26, 2021), and each day will have a “live” program timed to specific time zones (i.e., Day 1 – British Summer Time; Day 2 – Eastern Daylight Time; Day 3 – Australian Central Standard Time). In addition, there will also be many more pre-recorded sessions (e.g., “parallel sessions”, “meet the expert sessions”), and all of the live / pre-recorded sessions will be accessible during and after the Annual Meeting. The e-poster sessions will now be e-video sessions (see below). Obviously, the social events will now be virtual, but we hope just as entertaining as in previous years!