*Virtual sessions for TDWG interest and task groups* Interest and task groups are the driving force for developing and maintaining TDWG standards, and participation is the essential factor that gives TDWG standards authority in open science. As the biodiversity informatics community grows every year, we hold virtual introductory working sessions to: - inform the wider biodiversity information community about the on-going work to develop and maintain standards; - review progress to date; - engage new contributors; and - set the agenda for this year’s work. Schedule and registration The TDWG community spans the globe, which makes scheduling any single real-time event inconvenient for some people. Some groups will solve this problem by holding their “session” twice -- once for each hemisphere (East/West) -- increasing the likelihood that one will be less inconvenient. We will also record each session and post the videos as quickly as possible on TDWG’s YouTube channel. All sessions will be held in the two weeks between 14 - 25 April. Registration is free, but you must register to receive the Zoom link. An overview calendar for each week is below. Please visit the *main working sessions page* <https://www.tdwg.org/community/working-sessions/2025/> for session details, including: links to the group charters, the session time in your local time zone, and the links to register. Week #1, 14-17 April [image: week-1-900.png] Week #2, 22-25 April [image: week-2-900.png]