USA, Canada / Getting a VISA to USA by a Polish person nowadays [339]

Its not tough, just you have to gain the knowledge about all policy and factors that included to get Visa approval. It is better you visit the USCIS website which can help you to get all details. Be very sure about the documents and ready for person interview as US Embassy prefers interview in all cases. Also you can contact Immigration Lawyer from USA in case you want to be pretty sure about visa approval.