If you are giving a presentation, you received a link in your acceptance notification that allows you to download an invitation ... visa for permanent residence. Visitor visas are non-immigrant visas ...

you can write an invitation letter yourself. A common reason for visiting is graduation/commencement, but your friends and family are eligible to apply for a U.S. visitor visa at any point in time, ...

A: The consular officer will almost never ask to see an invitation letter when you’re applying for a non-immigrant visa. The United States does not require visitors to receive an invitation ...

More than 40 mayors from across the U.S. called on the State Department to reduce visa interview wait times for visitors from top markets in a letter ... trips to the United States than ...