E-reading company Kobo is releasing a new e-reader and three new tablets and launching a book discovery tool called “Beyond the Book,” the company announced at an event in New York Tuesday evening. It’s also partnering with read-it-later service Pocket and plans to launch a children’s digital bookstore and a digital newsstand this fall. The new e-reader is the Kobo Aura, a cheaper version of the company’s $170 “luxury” front-lit e-reader the Aura HD. The Kobo Aura, available for preorder now and available for sale September 16, is $149. It comes with 4 GB of storage — expandable to 32 GB — and has a 212-DPI, front-lit screen. There’s also a new tablet, the Kobo Arc HD, available in 7-inch and 10-inch versions. The Kobo Arc HD has a feature called “Reading Mode,” which turns off notifications, sound and email when users are reading. And there is an “optimized lighting experience” designed to save battery life.