The entire process, from initial to final interview, was fairly quick. It took 3 days total. The questions asked were standard ones regarding experience and skills. Their HR will guide you throughout the process.

You first will be given an exam, about how would you write an email response to one of the authors. You can just make assumptions about Author Solutions to write the email. I think they only wanted to check if you know basic english and if you know how to compose an email. Afterwards you will have an exam about basic english, listening test and spot the errors in an email. Exam was not difficult at all if you know how to speak english. The interviewers were very nice