A display apparatus comprising: a display; a user input receiver comprising receiving circuitry configured to receive a voice input uttered by a user; and a processor configured to: display at least one first image (401, 402), and first text information and second text information on the display, the first text information being related to the at least one first image, and the second text information being related to at least one second image which is not displayed on the display; and based on a voice input corresponding to the second text information being received while the at least one first image (401, 402), the first text information and the second text information are displayed on the display: replace the at least one first image (401, 402) with the at least one second image such that the at least one second image is displayed in place of the at least one first image (401, 402) on the display, update the first text information to include information about the second image, and update the second text information to include information about at least one third image which is not displayed on the display. a display; a user input receiver comprising receiving circuitry configured to receive a voice input uttered by a user; and a processor configured to: display at least one first image (401, 402), and first text information and second text information on the display, the first text information being related to the at least one first image, and the second text information being related to at least one second image which is not displayed on the display; and based on a voice input corresponding to the second text information being received while the at least one first image (401, 402), the first text information and the second text information are displayed on the display: replace the at least one first image (401, 402) with the at least one second image such that the at least one second image is displayed in place of the at least one first image (401, 402) on the display, update the first text information to include information about the second image, and update the second text information to include information about at least one third image which is not displayed on the display. display at least one first image (401, 402), and first text information and second text information on the display, the first text information being related to the at least one first image, and the second text information being related to at least one second image which is not displayed on the display; and based on a voice input corresponding to the second text information being received while the at least one first image (401, 402), the first text information and the second text information are displayed on the display: replace the at least one first image (401, 402) with the at least one second image such that the at least one second image is displayed in place of the at least one first image (401, 402) on the display, update the first text information to include information about the second image, and update the second text information to include information about at least one third image which is not displayed on the display. replace the at least one first image (401, 402) with the at least one second image such that the at least one second image is displayed in place of the at least one first image (401, 402) on the display, update the first text information to include information about the second image, and update the second text information to include information about at least one third image which is not displayed on the display.