1. Simple, smart, sensible
You will learn to live by this mantra for the rest of your working life. You should dress to reflect the company or office environment, whether it's corporate or creative. It's not the time to be trendy - even if you're interning at a fashion magazine.
2. Watch your hemline
You're young with amazing legs, but no one needs to see them in the office. Save them for the weekend. Keep things professional by keeping things at the knee.
3. Don't spend too much
You'll likely want to translate all your excitement (or panic) over what to wear by buying lots of new office-appropriate clothes. Don't! You're probably not being paid, and no one will expect you to come into the office in head-to-toe new looks each day. If you buy anything, make it a smart, well-tailored black blazer.
4. The jacket
A good jacket will become your fail-safe uniform throughout any internship, whether you're in a corporate environment (wear it with black pants for a less uptight take on a suit) or somewhere more creative and casual (over a printed dress, or basically anything you have in your wardrobe, except denim or pyjamas).