Email to schedule a phone interview with the HR Associate. General questions, about your resume, your goals, etc. Easy-going interview with a friendly employee.
If successful, you will have a in person interview in the company's offices in Manhattan. You will meet 2-3 people, most probably one Associate and one VP from different departments.
They care a lot about the personality and less about specific technical skills.
All are very friendly.
After the interview they may give some tips as well.