A display apparatus has a camera portion which shoots an operation panel, a display portion which displays information while allowing a user to see the operation panel, and a control portion which recognizes the position of the operation panel in the display area of the display portion and the currently displayed screen currently being displayed by the operation panel and which makes the display portion display, in such a way as not to overlap the operation panel, item information indicating the item description of an item button arranged on a screen to which a shift is possible from the currently displayed screen.