TumbleBooks and TumbleQuizzes are created in Flash animation and require the Flash plug-in to view and hear the animation. The great majority of computers and operating systems are already preloaded with Flash. If you are unable to view the books you can download the Flash plug-in for free at www.adobe.com. Please do not hesitate to contact TumbleBooks at info@tumblebooklibrary.com should you have any questions.
