Officials at Amazon believe subscription-based ebook consumption is an inevitability, and will continue to invest in and build the company’s Kindle Unlimited service as part of an effort to stay ahead of the emerging trend, Russ Grandinetti, senior VP, Kindle, at Amazon explained during a candid general session interview on January 14 at the Digital Book World Conference and Expo 2015. In a separate panel, publishers expressed enthusiasm for Oyster and Scribd as discovery platforms.