Perform one of the most famous mentalism magic trick that is kept alive by modern magicians such as Derren Brown and Chris Angel: the Book Test. The magician lends his smartphone to a spectator performing the following steps on the calculator: multiply a random 3-digit number by another random 3-digit number then divide the new number by a random 4-digit number. Then the spectator selects any of three readable and examinable books or any of three ebooks available on a tablet. The spectator flips the pages to the corresponding integer result number. The magician tells the spectator to concentrate on this random page then reveals few words at the top and the bottom on this page. Please be aware that you can't perform immediatly the trick, you have to set up your first use of the app. Once you set up, you won't regret it. Magic trick designed by Mikael Montier. /// www.magicapps. me. Our Magic Apps have been downloaded by more than 400K users and are featured in the most famous newspapers, magic magazines, high-tech blogs. Yahoo Tech - David Pogue"I love, love, love this trick. "Exceptionally clever, convincing secret. "FANTASTIC for a beginner. "Extremely easy, wildly creative trick. "The New York Times - Kit Eaton"Simple, great-looking design and adorably funny. "MUM Magazine (The Society of American Magicians) - Bruce Kalver"Mikael Montier churns out some real winning apps. Bravo. "The Unofficial Apple Weblog (TUAW) - Mel Martin"These magic apps are very clever. ".