The E-Book Where Thunderstorms Really Come From and Lauri Neuding's colorful illustrations fill your screen in a 640 x 480 pixels format. It's Windows 9x... and NT friendly, but best viewed in at least 16 bit colors. Each page has a next, back, and stop button that allows you to move easily throughout the book. If you have a sound card, the animated cloud will read the story to you and put an end to your wonders.