In its response to a class action lawsuit filed against them in May by David Knox and Caroline Schacht, Cengage denies that its business model “tramples on” or is in any way inconsistent with its authors’ rights and believes that the new Cengage Unlimited model will “increase sales and revenues (and, accordingly, royalties to authors).”

Cengage authors Knox and Schacht filed their class action lawsuit in the U.S. District Court for the Southern District of New York on May 14 against Cengage claiming the company’s emphasis on digital distribution, including its new Cengage Unlimited model and expanded digital courseware offerings, have violated their publishing agreements. The suit also claims that the company is refusing to provide information that would allow them to audit their royalty payments.