I applied online. The process took 1 day. I interviewed at Ogilvy (London, England) in Mar 2020
Interview
Was interviewed by 18 people individually aka 'speed interviews'. It was intense and loud as you were in a room with 20 other interviewees however was a fun experience. Some harder questions were thrown in there. This was part of an assessment day.
Interview questions [1]
Question 1
What was something you read recently that interested you?