Visa programs are official pathways that allow individuals from one country to enter, stay, or work in another country for a specific period. These programs are often designed to meet various needs, such as tourism, education, or employment. Each country has its own set of visa categories, which may include student visas, work visas, and tourist visas. To obtain a visa, applicants typically need to provide documentation, such as proof of financial stability, a valid passport, and sometimes a letter of invitation. The application process can vary significantly depending on the country and the type of visa being sought, often requiring interviews or background checks.