You must first apply. After submission, you will have to schedule an interview with the talent acquisition. You will then have another interview with the sales rep closest to your school.
I applied online. The process took 3 weeks. I interviewed at Cengage (Storrs Manfld, CT) in Dec 2017
Interview
Quick online application, was then quickly called for a video interview (since this is mostly a work-at-home job). Very friendly interview, a chance for them to get to know you personally.