An item display method comprising: displaying items of a first category, a tab associated with the first category and a tab associated with a second category on a screen of a display unit, the tabs being arranged adjacent to one another in a vertical or a horizontal direction; in response to receiving by a processor a first user gesture on the screen detected by an input unit: displaying by the display unit, when the processor determines that the first user gesture comprises a selection gesture selecting one of the tab associated with the first category or the tab associated with the second category, items of the first category or items of the second category, according to the selection made, and displaying by the display unit, when the processor determines that the first user gesture comprises a scroll gesture in the vertical or the horizontal direction, items of the second category immediately subsequent to displaying a last item of the first category; and, in response to receiving by the processor a second user gesture detected by the input unit for selecting at least one item of the first category, displaying an information element regarding the selected item on the tab associated with the first category, wherein the information element regarding the selected item includes at least one of position information of the selected item within the first category and a thumbnail of the selected item, wherein the second user gesture begins at a region of the screen on which the item of the first category is displayed and ends at a region of the screen on which the tab associated with the first category is displayed and, the method further comprising, when information elements of multiple items are displayed on the tab associated with the first category: in response to receiving, through the input unit, a further user gesture simultaneously selecting multiple information elements, determining whether a distance between the selected information elements is less than a preset value, and based on the determination result, displaying a menu or a popup window to enable the user to select a desired information element among said multiple selected information elements. displaying by the display unit, when the processor determines that the first user gesture comprises a selection gesture selecting one of the tab associated with the first category or the tab associated with the second category, items of the first category or items of the second category, according to the selection made, and displaying by the display unit, when the processor determines that the first user gesture comprises a scroll gesture in the vertical or the horizontal direction, items of the second category immediately subsequent to displaying a last item of the first category; and, in response to receiving by the processor a second user gesture detected by the input unit for selecting at least one item of the first category, displaying an information element regarding the selected item on the tab associated with the first category, wherein the information element regarding the selected item includes at least one of position information of the selected item within the first category and a thumbnail of the selected item, wherein the second user gesture begins at a region of the screen on which the item of the first category is displayed and ends at a region of the screen on which the tab associated with the first category is displayed and, the method further comprising, when information elements of multiple items are displayed on the tab associated with the first category: in response to receiving, through the input unit, a further user gesture simultaneously selecting multiple information elements, determining whether a distance between the selected information elements is less than a preset value, and based on the determination result, displaying a menu or a popup window to enable the user to select a desired information element among said multiple selected information elements. in response to receiving, through the input unit, a further user gesture simultaneously selecting multiple information elements, determining whether a distance between the selected information elements is less than a preset value, and based on the determination result, displaying a menu or a popup window to enable the user to select a desired information element among said multiple selected information elements.