Marketing Intern applicants have rated the interview process at HarperCollins with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 65.5% positive. This is according to Glassdoor user ratings.
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Multiple rounds—first, a screening call and then a more in-depth interview. The screening was around 15 minutes, with the longer interview being about half an hour. Spoke about books and past experience.