Advice
As an intern, I would definitely take advantage of your supervisors! Ask them questions, get to know them, build some semblance of a relationship with them. But also, extend yourself beyond your department. You're allowed to learn the entire company! Hachette does an amazing job of encouraging you to interact with members throughout, not solely the ones you intern for. So, ask to meet with someone for coffee; question them. It's so important to maintain connections.
