ESTA and visa
Even for a short stay in the US, if the person is planning to engage related to the management of business involving income or activities he/she receives remuneration would be required to apply for visa, not ESTA. Please check the differences of ESTA and Visa.
Visas
Passport is a certificate of traveler’s identity and nationality, and visa is for entry authorization permitting to the entry to the visiting country. Here describes difference of passport and visa.
B1/B2 visas
These are the most common visas issued by the U.S., useful for a broad range of purposes. B1 visas are intended for short-term business travel, while B2 visas are intended mainly for sightseeing.
E-1 visas
Those desiring to visit the U.S. as resident employees or to engage in trade with the U.S. must obtain E1 visa. Various types of visas necessary for staying in the U.S. are described.
The latest information on U.S. J-1 visas
J1-visa acquisition method and details will be explained for those who wish to live and work, or work as an intern in the US.
Application of K-1 Visa (fiancé(e) visa)
The K-1 Visa (fiancé(e) visa) is intended for foreign-citizen who is engaged to be married to a U.S. citizen and wish to reside permanently in the U.S. after marriage. Please refer to the details regarding visa application.
Applying for a U.S. visa
If you plan to visit the U.S. for a period or purposes beyond the requirements for ESTA, you must first obtain an immigrant or nonimmigrant visa for permanent or temporary residence status.
DS160 form: Sample
Use the DS160 visa application system if you want to stay in the U.S., including the continental U.S., Hawaii, Guam, and Saipan, on a long-term basis for purposes such as studying abroad or employment.