A visa is a document that provides authorization for travel to and admittance to the foreign country. Before visiting, working, or immigrating to the country., a citizen of a foreign country generally must first obtain a visa. The visa provides entry to the Country. and, depending on the type of visa obtained, may provide authorization for employment in there.
When you have secured the appropriate visa, you will need to get a permit to work, which is officially known as an Employment Authorisation Document (EAD), in order to prove you are eligible to work in the country. The document provides proof to employers that you are legally permitted to work.
Each country has different terms for providing work visas.