"Know the user. Know the magic. Connect the two." is a mantra that runs deep among Google marketing teams
. The same approach applies to the interview prep for marketing roles.
(1) Know the company. You should thoroughly research the company you're applying for. Knowing what they're looking for in the candidates will make it easier for you to tailor the right stories from your experience.
(2) Know your magic. You should know what you're capable of. It's not about facts and stats. It's about strategic narratives you build by using the facts from your experience. Under no circumstances, it's not about making things up. It's about clearly communicating your experience in a digestible way.
(3) Lastly, you should practice a lot to connect the two.
While you'll need to research every company before the interview, there is nothing much to prepare in advance. What you can prepare, however, is your experience well packed in your elevator pitch and properly framed answers. Below, I'll show you the most common prep I used for almost every role in marketing I applied for.