Sophia Amoruso’s book "#GIRLBOSS" shares the story of how she started online clothing business and turned it into a successful hundred million dollar company before she even turned 30. When the book was released in May 2014, "#GIRLBOSS" spent 18 weeks on the New York Times Bestseller list, and on September 29 Amoruso kicked off the release of the paperback at the Union Square Barnes and Noble with a conversation with “Teen Vogue” Editor-in-Chief Amy Astley.

Here are three things we learned about starting your own business from Sophia Amoruso:

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1. Make something you love into your business.

“It’s not a bad thing to professionalize what you enjoy doing,” says Amoruso. “It’s what I did with vintage clothing.” If you really love your job, it will make your business more successful. Make sure that you’re doing something you love because you want to, not because of attention you might get. “If you’re seeking the limelight, it won’t work,” Amoruso says.

2. Be ambitious and a team player.

When hiring someone, Amoruso looks for a person who is willing to work – but not someone who isn’t willing to learn. “They’re ambitious, but not entitled,” Amoruso says about employees she looks for. “If you’re like that, no one will want to be around you.” When you stay organized and on top of your job, you’ll stand out from the crowd.

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3. Earn everything yourself.

“Working for things is really important,” Amoruso says. The reward will taste so much sweeter when you know you’ve earned everything you’ve worked for yourself, especially if you’ve been working towards a goal for a long time. “There’s only one first time that you can earn something yourself,” says Amoruso. After that, more motivation will come to keep reaching for new goals.