It was 4 rounds total. First is an intro chat, then writing samples, take home assignment, presentation. If you make it to the end, you send references to complete the process.
I applied through an employee referral. The process took 3 months. I interviewed at Consumer Dynamics (New York, NY) in Sept 2015
Interview
Met at a coffee shop to do the initial interview, then I was brought into the office to meet a few of the employees, I was asked to do a mock-project and I presented it to the founders a few weeks later. They invited me to freelance for them for a week, and then I received an offer.
Interview questions [1]
Question 1
General questions: Tell me about your background, what is your favorite brand, etc. Very conversational and nothing intimidating.