What type of Non-Immigrant Visas are there?

Purpose of Travel to U.S. and Nonimmigrant Visas Visa Type Exchange Visitors, Scholars, Teachers (Trainees, Au pairs, etc.) J Australian professional specialty E-3 Border Crossing Card: Mexico BCC Business visitors B-1 Diplomats and foreign government officials A Employees of a designated international organization, and NATO G1-G5, NATO Foreign military personnel stationed in the U.S. A-2 NATO1-6 Foreign nationals with extraordinary ability in Sciences, Arts, Education, Business or Athletics O Free Trade Agreement (FTA) Professionals: Chile, Singapore H-1B1 International cultural exchange visitors Q Intra-company transferees L Media, journalists I NAFTA professional workers: Mexico, Canada TN/TD Nurses coming to health professional shortage areas H1-C Performing athletes, artists, entertainers P Physician J, H-1B Professor, scholar, teacher (exchange visitor) J Religious workers R Specialty occupations in fields requiring highly specialized knowledge H-1B Students: academic, vocational F, M Temporary agricultural workers or Seasonal Workers H-2A Tourism, vacation, pleasure visitors B2 Training in a program not primarily for employment H-3 Treaty traders/treaty investors E Transiting the United States C