From the Esri Website:
Your virtual front-row seat
The 2021 Esri User Conference (Esri UC) is a fully virtual experience. Join us at the Plenary Session to hear from Esri president Jack Dangermond, Esri staff experts, and special guests. Learn to use the latest tools in technical sessions. Get inspired by user presentations and the Virtual Map Gallery entries. Find solutions in the Expo and Esri Showcase, and shop at the Esri Merch Store.