I got the internship through reaching out to connections I had at the company. I first interviewed briefly with my connection in the editorial department, who then passed me along to the overall intern coordinator. She was very polite, but not particularly thorough or interested in ensuring I had a stimulating experience. They didn't reach out to me for several weeks, and when they did I was to start a day or two later.

Interviewed at a college job fair at handed in my resume and spoke with the HR recruiter. Ask about certain categories of books i would like an intern with and my availability. Make sure you send a follow up email in a timely fashion.