A method is disclosed of successively displaying pages of an electronic book by one or more pages each time on a display screen, and turning the pages on the screen in response to a user's input via finger touch of the screen. This method includes: upon the user's soft touch on the screen with the finger with an intensity below a predetermined value, selecting a page turn direction based on at least one of a position at which the soft touch was performed with the finger, and a direction of the finger's movement after the soft touch; and upon the selection being followed by the user's hard touch on the screen with the finger with an intensity above the predetermined value, authorizing initiation of a page turn event for turning the pages on the screen in the selected page-turn-direction.