How I Made It: Elena Grewal leads Airbnb’s data scientists

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Getting in: To get into data science, it helps to have a questioning and logical mind, Grewal said. She also recommends training in statistics, computer programming and developing strong communications skills. But there’s no need for a degree to start analyzing data, and anyone interested in doing it should start doing it on their own, she said. “When I was in my PhD program, I was blogging about my work and doing fun analyses on the side,” Grewal said. “It was a great way for me to learn about different ways to do data analysis, and it helped me get a job because people could see what I’d done.”