An information processing apparatus making it possible for a user to easily realize changes in the whole electronic book accompanying an editing operation performed by the user. Changes in the edited electronic book are extracted and displayed on the display unit. The extracted changes are classified into first changes related to pages before a displayed page and second changes related to pages after the displayed page. The changes are caused to be displayed on the page displayed on the display unit such that the changes can be discriminated as any of the first changes or the second changes.