18. Visa invitation is an official document, issued by the Ukrainian Department of passport and visa services. It is one of the most important documents, as it confirms the student’s rights, agrees that he/she can enter the territory of Ukraine and get further education. Student’s passport data and full title of the University should be mentioned in invitation. The execution of invitation usually takes up to 45 days. The given document is valid for 90 days, including the date of its issue.