Non U.S. citizens/residents traveling to the US to attend the Summer Workshop should check on visa requirements well in advance, and apply for a visa as early as possible, as visa wait times can range from several days to several months.
Current Visa Wait Times
Look up your consulate's wait times on the U.S. Department of State's list.
Visa Letters of Invitation
Email Moya Wright, the Summer Workshop Coordinator to request a visa letter of invitation.