Olivia Palermo first caught our attention when she appeared in The Hills spin-off TV show The City, which trailed the life of Lauren Conrad's friend Whitney Port in the Big Apple.

Back then the budding fashionista and socialite, now 30 years old, was working in the PR department of Diane Von Furstenburg before bagging a job on Elle magazine's accessories section.

Since then she's been signed as a model, worked as a brand ambassador for various fashion labels and even launched her own digital fashion empire, complete with outfit inspiration, beauty tips and even a shop.

Clearly, when it comes to clothes, this woman knows what she's talking about.

And it's because of these stellar sartorial credentials that we were compelled to look back at her style file and root out the looks that she keeps returning to. So without further ado, behold the fashion rules of Olivia Palermo's wardrobe. We'll be reciting them to ourselves daily.

Olivia Palermo's style transformation and the sartorial rules she lives by