What is working at a creative advertising agency like?

I often get asked what working at an advertising / marketing agency is like, and so here is my honest take based on my experience. I will first talk about the structure of a creative marketing shop, the main teams that are involved from account services, strategy and creative. Then, I talk about the working culture, what my hours are like, and what the general environment is like. And yes, the stereotypes are true. Last, I talk a bit about why I chose this career route straight out of university, what the main learnings are if you choose to enter this industry and what my favorite part of work is.