The present specification relates to a display device detecting a gaze location and a method of controlling therefor, and more particularly, to a method of displaying a reading interface based on a gaze location of a user and displaying content. According to one embodiment, a display device includes a display unit configured to display content, the display unit including a first display area and a second display area, an image capturing unit configured to capture a front image of the display device, and a processor configured to control the display unit and the image capturing unit and configured to detect a gaze location of a user located at a front of the display device from the captured image.