The U.S. Embassy in Islamabad and the U.S. Consulate General in Pakistan provide visa services for individuals planning to visit the United States temporarily. Whether you’re traveling for tourism, business, education, or work, understanding the right visa category is essential. Here’s a detailed guide to some of the most important U.S. nonimmigrant visa categories. https://www.quora.com/profile/Yugo-Places/Directory-of-US-Nonimmigrant-Visa-Categories