As students across the country head back to campus this fall, finding a way to pay the rising costs is a growing burden for many. And it's not just tuition and housing. Students say textbook costs are their top source of financial stress after paying the tuition bill. The education and technology company Cengage has taken a new approach to help students solve this problem. We chat with Cengage CEO, Michael Hansen, to find out more about how his company is helping students lower the burden of paying for college.