We provide sky style templates for you to make stunning flash flip books this time. Maybe you are familiar with the sky. But have you ever seen the sky in yellow color, in light purple color, or in pure blue? Nowadays, as the fast pace lifestyle is popular and the environment is polluted by the vehicle exhaust emissions, such pure sky is gone ever in the big cities. So these sky style themes are of great meanings. The background images are rendered with three different simple colors. They will lead your flash-flipping eBooks to a different level. Convert PDF to flash flipbooks in a quick way and make them real turn page effects by importing these themes now. You can choose your favorite color among these three ones. No doubt that those practical themes will help to keep a good impression on your readers.